446 lines
18 KiB
Markdown
446 lines
18 KiB
Markdown
# Changelog
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All notable changes to this project will be documented in this file.
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## [0.11.0](https://github.com/brick/math/releases/tag/0.11.0) - 2023-01-16
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💥 **Breaking changes**
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- Minimum PHP version is now 8.0
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- Methods accepting a union of types are now strongly typed<sup>*</sup>
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- `MathException` now extends `Exception` instead of `RuntimeException`
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<sup>* You may now run into type errors if you were passing `Stringable` objects to `of()` or any of the methods
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internally calling `of()`, with `strict_types` enabled. You can fix this by casting `Stringable` objects to `string`
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first.</sup>
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## [0.10.2](https://github.com/brick/math/releases/tag/0.10.2) - 2022-08-11
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👌 **Improvements**
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- `BigRational::toFloat()` now simplifies the fraction before performing division (#73) thanks to @olsavmic
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## [0.10.1](https://github.com/brick/math/releases/tag/0.10.1) - 2022-08-02
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✨ **New features**
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- `BigInteger::gcdMultiple()` returns the GCD of multiple `BigInteger` numbers
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## [0.10.0](https://github.com/brick/math/releases/tag/0.10.0) - 2022-06-18
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💥 **Breaking changes**
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- Minimum PHP version is now 7.4
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## [0.9.3](https://github.com/brick/math/releases/tag/0.9.3) - 2021-08-15
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🚀 **Compatibility with PHP 8.1**
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- Support for custom object serialization; this removes a warning on PHP 8.1 due to the `Serializable` interface being deprecated (#60) thanks @TRowbotham
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## [0.9.2](https://github.com/brick/math/releases/tag/0.9.2) - 2021-01-20
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🐛 **Bug fix**
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- Incorrect results could be returned when using the BCMath calculator, with a default scale set with `bcscale()`, on PHP >= 7.2 (#55).
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## [0.9.1](https://github.com/brick/math/releases/tag/0.9.1) - 2020-08-19
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✨ **New features**
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- `BigInteger::not()` returns the bitwise `NOT` value
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🐛 **Bug fixes**
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- `BigInteger::toBytes()` could return an incorrect binary representation for some numbers
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- The bitwise operations `and()`, `or()`, `xor()` on `BigInteger` could return an incorrect result when the GMP extension is not available
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## [0.9.0](https://github.com/brick/math/releases/tag/0.9.0) - 2020-08-18
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👌 **Improvements**
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- `BigNumber::of()` now accepts `.123` and `123.` formats, both of which return a `BigDecimal`
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💥 **Breaking changes**
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- Deprecated method `BigInteger::powerMod()` has been removed - use `modPow()` instead
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- Deprecated method `BigInteger::parse()` has been removed - use `fromBase()` instead
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## [0.8.17](https://github.com/brick/math/releases/tag/0.8.17) - 2020-08-19
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🐛 **Bug fix**
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- `BigInteger::toBytes()` could return an incorrect binary representation for some numbers
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- The bitwise operations `and()`, `or()`, `xor()` on `BigInteger` could return an incorrect result when the GMP extension is not available
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## [0.8.16](https://github.com/brick/math/releases/tag/0.8.16) - 2020-08-18
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🚑 **Critical fix**
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- This version reintroduces the deprecated `BigInteger::parse()` method, that has been removed by mistake in version `0.8.9` and should have lasted for the whole `0.8` release cycle.
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✨ **New features**
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- `BigInteger::modInverse()` calculates a modular multiplicative inverse
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- `BigInteger::fromBytes()` creates a `BigInteger` from a byte string
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- `BigInteger::toBytes()` converts a `BigInteger` to a byte string
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- `BigInteger::randomBits()` creates a pseudo-random `BigInteger` of a given bit length
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- `BigInteger::randomRange()` creates a pseudo-random `BigInteger` between two bounds
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💩 **Deprecations**
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- `BigInteger::powerMod()` is now deprecated in favour of `modPow()`
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## [0.8.15](https://github.com/brick/math/releases/tag/0.8.15) - 2020-04-15
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🐛 **Fixes**
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- added missing `ext-json` requirement, due to `BigNumber` implementing `JsonSerializable`
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⚡️ **Optimizations**
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- additional optimization in `BigInteger::remainder()`
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## [0.8.14](https://github.com/brick/math/releases/tag/0.8.14) - 2020-02-18
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✨ **New features**
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- `BigInteger::getLowestSetBit()` returns the index of the rightmost one bit
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## [0.8.13](https://github.com/brick/math/releases/tag/0.8.13) - 2020-02-16
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✨ **New features**
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- `BigInteger::isEven()` tests whether the number is even
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- `BigInteger::isOdd()` tests whether the number is odd
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- `BigInteger::testBit()` tests if a bit is set
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- `BigInteger::getBitLength()` returns the number of bits in the minimal representation of the number
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## [0.8.12](https://github.com/brick/math/releases/tag/0.8.12) - 2020-02-03
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🛠️ **Maintenance release**
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Classes are now annotated for better static analysis with [psalm](https://psalm.dev/).
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This is a maintenance release: no bug fixes, no new features, no breaking changes.
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## [0.8.11](https://github.com/brick/math/releases/tag/0.8.11) - 2020-01-23
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✨ **New feature**
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`BigInteger::powerMod()` performs a power-with-modulo operation. Useful for crypto.
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## [0.8.10](https://github.com/brick/math/releases/tag/0.8.10) - 2020-01-21
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✨ **New feature**
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`BigInteger::mod()` returns the **modulo** of two numbers. The *modulo* differs from the *remainder* when the signs of the operands are different.
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## [0.8.9](https://github.com/brick/math/releases/tag/0.8.9) - 2020-01-08
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⚡️ **Performance improvements**
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A few additional optimizations in `BigInteger` and `BigDecimal` when one of the operands can be returned as is. Thanks to @tomtomsen in #24.
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## [0.8.8](https://github.com/brick/math/releases/tag/0.8.8) - 2019-04-25
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🐛 **Bug fixes**
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- `BigInteger::toBase()` could return an empty string for zero values (BCMath & Native calculators only, GMP calculator unaffected)
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✨ **New features**
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- `BigInteger::toArbitraryBase()` converts a number to an arbitrary base, using a custom alphabet
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- `BigInteger::fromArbitraryBase()` converts a string in an arbitrary base, using a custom alphabet, back to a number
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These methods can be used as the foundation to convert strings between different bases/alphabets, using BigInteger as an intermediate representation.
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💩 **Deprecations**
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- `BigInteger::parse()` is now deprecated in favour of `fromBase()`
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`BigInteger::fromBase()` works the same way as `parse()`, with 2 minor differences:
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- the `$base` parameter is required, it does not default to `10`
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- it throws a `NumberFormatException` instead of an `InvalidArgumentException` when the number is malformed
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## [0.8.7](https://github.com/brick/math/releases/tag/0.8.7) - 2019-04-20
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**Improvements**
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- Safer conversion from `float` when using custom locales
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- **Much faster** `NativeCalculator` implementation 🚀
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You can expect **at least a 3x performance improvement** for common arithmetic operations when using the library on systems without GMP or BCMath; it gets exponentially faster on multiplications with a high number of digits. This is due to calculations now being performed on whole blocks of digits (the block size depending on the platform, 32-bit or 64-bit) instead of digit-by-digit as before.
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## [0.8.6](https://github.com/brick/math/releases/tag/0.8.6) - 2019-04-11
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**New method**
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`BigNumber::sum()` returns the sum of one or more numbers.
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## [0.8.5](https://github.com/brick/math/releases/tag/0.8.5) - 2019-02-12
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**Bug fix**: `of()` factory methods could fail when passing a `float` in environments using a `LC_NUMERIC` locale with a decimal separator other than `'.'` (#20).
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Thanks @manowark 👍
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## [0.8.4](https://github.com/brick/math/releases/tag/0.8.4) - 2018-12-07
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**New method**
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`BigDecimal::sqrt()` calculates the square root of a decimal number, to a given scale.
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## [0.8.3](https://github.com/brick/math/releases/tag/0.8.3) - 2018-12-06
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**New method**
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`BigInteger::sqrt()` calculates the square root of a number (thanks @peter279k).
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**New exception**
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`NegativeNumberException` is thrown when calling `sqrt()` on a negative number.
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## [0.8.2](https://github.com/brick/math/releases/tag/0.8.2) - 2018-11-08
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**Performance update**
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- Further improvement of `toInt()` performance
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- `NativeCalculator` can now perform some multiplications more efficiently
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## [0.8.1](https://github.com/brick/math/releases/tag/0.8.1) - 2018-11-07
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Performance optimization of `toInt()` methods.
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## [0.8.0](https://github.com/brick/math/releases/tag/0.8.0) - 2018-10-13
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**Breaking changes**
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The following deprecated methods have been removed. Use the new method name instead:
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| Method removed | Replacement method |
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| `BigDecimal::getIntegral()` | `BigDecimal::getIntegralPart()` |
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| `BigDecimal::getFraction()` | `BigDecimal::getFractionalPart()` |
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---
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**New features**
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`BigInteger` has been augmented with 5 new methods for bitwise operations:
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| New method | Description |
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| `and()` | performs a bitwise `AND` operation on two numbers |
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| `or()` | performs a bitwise `OR` operation on two numbers |
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| `xor()` | performs a bitwise `XOR` operation on two numbers |
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| `shiftedLeft()` | returns the number shifted left by a number of bits |
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| `shiftedRight()` | returns the number shifted right by a number of bits |
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Thanks to @DASPRiD 👍
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## [0.7.3](https://github.com/brick/math/releases/tag/0.7.3) - 2018-08-20
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**New method:** `BigDecimal::hasNonZeroFractionalPart()`
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**Renamed/deprecated methods:**
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- `BigDecimal::getIntegral()` has been renamed to `getIntegralPart()` and is now deprecated
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- `BigDecimal::getFraction()` has been renamed to `getFractionalPart()` and is now deprecated
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## [0.7.2](https://github.com/brick/math/releases/tag/0.7.2) - 2018-07-21
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**Performance update**
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`BigInteger::parse()` and `toBase()` now use GMP's built-in base conversion features when available.
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## [0.7.1](https://github.com/brick/math/releases/tag/0.7.1) - 2018-03-01
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This is a maintenance release, no code has been changed.
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- When installed with `--no-dev`, the autoloader does not autoload tests anymore
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- Tests and other files unnecessary for production are excluded from the dist package
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This will help make installations more compact.
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## [0.7.0](https://github.com/brick/math/releases/tag/0.7.0) - 2017-10-02
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Methods renamed:
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- `BigNumber:sign()` has been renamed to `getSign()`
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- `BigDecimal::unscaledValue()` has been renamed to `getUnscaledValue()`
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- `BigDecimal::scale()` has been renamed to `getScale()`
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- `BigDecimal::integral()` has been renamed to `getIntegral()`
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- `BigDecimal::fraction()` has been renamed to `getFraction()`
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- `BigRational::numerator()` has been renamed to `getNumerator()`
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- `BigRational::denominator()` has been renamed to `getDenominator()`
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Classes renamed:
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- `ArithmeticException` has been renamed to `MathException`
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## [0.6.2](https://github.com/brick/math/releases/tag/0.6.2) - 2017-10-02
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The base class for all exceptions is now `MathException`.
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`ArithmeticException` has been deprecated, and will be removed in 0.7.0.
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## [0.6.1](https://github.com/brick/math/releases/tag/0.6.1) - 2017-10-02
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A number of methods have been renamed:
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- `BigNumber:sign()` is deprecated; use `getSign()` instead
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- `BigDecimal::unscaledValue()` is deprecated; use `getUnscaledValue()` instead
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- `BigDecimal::scale()` is deprecated; use `getScale()` instead
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- `BigDecimal::integral()` is deprecated; use `getIntegral()` instead
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- `BigDecimal::fraction()` is deprecated; use `getFraction()` instead
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- `BigRational::numerator()` is deprecated; use `getNumerator()` instead
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- `BigRational::denominator()` is deprecated; use `getDenominator()` instead
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The old methods will be removed in version 0.7.0.
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## [0.6.0](https://github.com/brick/math/releases/tag/0.6.0) - 2017-08-25
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- Minimum PHP version is now [7.1](https://gophp71.org/); for PHP 5.6 and PHP 7.0 support, use version `0.5`
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- Deprecated method `BigDecimal::withScale()` has been removed; use `toScale()` instead
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- Method `BigNumber::toInteger()` has been renamed to `toInt()`
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## [0.5.4](https://github.com/brick/math/releases/tag/0.5.4) - 2016-10-17
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`BigNumber` classes now implement [JsonSerializable](http://php.net/manual/en/class.jsonserializable.php).
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The JSON output is always a string.
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## [0.5.3](https://github.com/brick/math/releases/tag/0.5.3) - 2016-03-31
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This is a bugfix release. Dividing by a negative power of 1 with the same scale as the dividend could trigger an incorrect optimization which resulted in a wrong result. See #6.
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## [0.5.2](https://github.com/brick/math/releases/tag/0.5.2) - 2015-08-06
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The `$scale` parameter of `BigDecimal::dividedBy()` is now optional again.
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## [0.5.1](https://github.com/brick/math/releases/tag/0.5.1) - 2015-07-05
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**New method: `BigNumber::toScale()`**
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This allows to convert any `BigNumber` to a `BigDecimal` with a given scale, using rounding if necessary.
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## [0.5.0](https://github.com/brick/math/releases/tag/0.5.0) - 2015-07-04
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**New features**
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- Common `BigNumber` interface for all classes, with the following methods:
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- `sign()` and derived methods (`isZero()`, `isPositive()`, ...)
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- `compareTo()` and derived methods (`isEqualTo()`, `isGreaterThan()`, ...) that work across different `BigNumber` types
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- `toBigInteger()`, `toBigDecimal()`, `toBigRational`() conversion methods
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- `toInteger()` and `toFloat()` conversion methods to native types
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- Unified `of()` behaviour: every class now accepts any type of number, provided that it can be safely converted to the current type
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- New method: `BigDecimal::exactlyDividedBy()`; this method automatically computes the scale of the result, provided that the division yields a finite number of digits
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- New methods: `BigRational::quotient()` and `remainder()`
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- Fine-grained exceptions: `DivisionByZeroException`, `RoundingNecessaryException`, `NumberFormatException`
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- Factory methods `zero()`, `one()` and `ten()` available in all classes
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- Rounding mode reintroduced in `BigInteger::dividedBy()`
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This release also comes with many performance improvements.
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---
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**Breaking changes**
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- `BigInteger`:
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- `getSign()` is renamed to `sign()`
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- `toString()` is renamed to `toBase()`
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- `BigInteger::dividedBy()` now throws an exception by default if the remainder is not zero; use `quotient()` to get the previous behaviour
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- `BigDecimal`:
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- `getSign()` is renamed to `sign()`
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- `getUnscaledValue()` is renamed to `unscaledValue()`
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- `getScale()` is renamed to `scale()`
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- `getIntegral()` is renamed to `integral()`
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- `getFraction()` is renamed to `fraction()`
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- `divideAndRemainder()` is renamed to `quotientAndRemainder()`
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- `dividedBy()` now takes a **mandatory** `$scale` parameter **before** the rounding mode
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- `toBigInteger()` does not accept a `$roundingMode` parameter anymore
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- `toBigRational()` does not simplify the fraction anymore; explicitly add `->simplified()` to get the previous behaviour
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- `BigRational`:
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- `getSign()` is renamed to `sign()`
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- `getNumerator()` is renamed to `numerator()`
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- `getDenominator()` is renamed to `denominator()`
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- `of()` is renamed to `nd()`, while `parse()` is renamed to `of()`
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- Miscellaneous:
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- `ArithmeticException` is moved to an `Exception\` sub-namespace
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- `of()` factory methods now throw `NumberFormatException` instead of `InvalidArgumentException`
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## [0.4.3](https://github.com/brick/math/releases/tag/0.4.3) - 2016-03-31
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Backport of two bug fixes from the 0.5 branch:
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- `BigInteger::parse()` did not always throw `InvalidArgumentException` as expected
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- Dividing by a negative power of 1 with the same scale as the dividend could trigger an incorrect optimization which resulted in a wrong result. See #6.
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## [0.4.2](https://github.com/brick/math/releases/tag/0.4.2) - 2015-06-16
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New method: `BigDecimal::stripTrailingZeros()`
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## [0.4.1](https://github.com/brick/math/releases/tag/0.4.1) - 2015-06-12
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Introducing a `BigRational` class, to perform calculations on fractions of any size.
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## [0.4.0](https://github.com/brick/math/releases/tag/0.4.0) - 2015-06-12
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Rounding modes have been removed from `BigInteger`, and are now a concept specific to `BigDecimal`.
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`BigInteger::dividedBy()` now always returns the quotient of the division.
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## [0.3.5](https://github.com/brick/math/releases/tag/0.3.5) - 2016-03-31
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Backport of two bug fixes from the 0.5 branch:
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- `BigInteger::parse()` did not always throw `InvalidArgumentException` as expected
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- Dividing by a negative power of 1 with the same scale as the dividend could trigger an incorrect optimization which resulted in a wrong result. See #6.
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## [0.3.4](https://github.com/brick/math/releases/tag/0.3.4) - 2015-06-11
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New methods:
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- `BigInteger::remainder()` returns the remainder of a division only
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- `BigInteger::gcd()` returns the greatest common divisor of two numbers
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## [0.3.3](https://github.com/brick/math/releases/tag/0.3.3) - 2015-06-07
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Fix `toString()` not handling negative numbers.
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## [0.3.2](https://github.com/brick/math/releases/tag/0.3.2) - 2015-06-07
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`BigInteger` and `BigDecimal` now have a `getSign()` method that returns:
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- `-1` if the number is negative
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- `0` if the number is zero
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- `1` if the number is positive
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## [0.3.1](https://github.com/brick/math/releases/tag/0.3.1) - 2015-06-05
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Minor performance improvements
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## [0.3.0](https://github.com/brick/math/releases/tag/0.3.0) - 2015-06-04
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The `$roundingMode` and `$scale` parameters have been swapped in `BigDecimal::dividedBy()`.
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## [0.2.2](https://github.com/brick/math/releases/tag/0.2.2) - 2015-06-04
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Stronger immutability guarantee for `BigInteger` and `BigDecimal`.
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So far, it would have been possible to break immutability of these classes by calling the `unserialize()` internal function. This release fixes that.
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## [0.2.1](https://github.com/brick/math/releases/tag/0.2.1) - 2015-06-02
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Added `BigDecimal::divideAndRemainder()`
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## [0.2.0](https://github.com/brick/math/releases/tag/0.2.0) - 2015-05-22
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- `min()` and `max()` do not accept an `array` anymore, but a variable number of parameters
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- **minimum PHP version is now 5.6**
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- continuous integration with PHP 7
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## [0.1.1](https://github.com/brick/math/releases/tag/0.1.1) - 2014-09-01
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- Added `BigInteger::power()`
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- Added HHVM support
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## [0.1.0](https://github.com/brick/math/releases/tag/0.1.0) - 2014-08-31
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First beta release.
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