Daniil Gentili
b2a3499218
Fixed mistakes in sqrt and its test
2016-07-30 00:54:56 +02:00
danogentili
e2a4969440
Added sqrt function and tests for it. Also added two() function to return a BigInteger of value 2.
2016-07-29 21:19:51 +02:00
Benjamin Morel
859ea90439
Fix incorrect optimization in dividedBy() - fixes #6
2016-03-31 18:54:32 +02:00
Benjamin Morel
08c6979c62
BigDecimal::dividedBy()'s $scale parameter is optional again
2015-08-06 13:04:27 +02:00
Benjamin Morel
c1bdb3b9b5
Add BigNumber::toScale()
...
This allows to convert any BigNumber to a BigDecimal of the given scale.
2015-07-05 13:07:10 +02:00
Benjamin Morel
ef3e3b6ea7
Add negative tests for BigRational::toBigDecimal()
2015-07-04 13:40:42 +02:00
Benjamin Morel
f2f4f8d451
Remove BigRational::isFiniteDecimal()
...
This information can now be inferred by calling toBigDecimal() and catching the exception.
2015-07-04 13:35:15 +02:00
Benjamin Morel
aa43c637b7
Re-introduce rounding mode in BigInteger::dividedBy()
2015-07-04 01:35:02 +02:00
Benjamin Morel
640af2b413
Remove abstract operators from BigNumber, rename divide methods in BigDecimal
...
It turned out that there was no value in having a generic interface for operations, when every concrete class could really only accept instances of itself, and more importantly, would only return instances of itself. This was also a problem for division, that cannot be handled in the same way for BigInteger, BigDecimal and BigRational.
Methods changed in BigDecimal:
- dividedBy() is now exactlyDividedBy(), and always calculates the scale automatically
- dividedToScale() is now dividedBy(), and does not not make any assumption on the scale any more
2015-07-04 01:26:05 +02:00
Benjamin Morel
db16e619c3
Add BigDecimal::quotient() and remainder() methods
2015-07-03 18:05:02 +02:00
Benjamin Morel
271b619453
Rename BigDecimal::dividedAndRemainder() to quotientAndRemainder()
...
This is consistent with the naming of the BigInteger method.
2015-07-03 17:54:02 +02:00
Benjamin Morel
38a6b8c342
Add BigNumber::toInteger() and toFloat() methods
...
These methods are implemented by BigInteger, BigDecimal and BigRational.
- toInteger() returns an exact value or throws an exception
- toFloat() returns an approximate value
2015-07-03 17:22:43 +02:00
Benjamin Morel
45e3c3a463
Remove get prefix in method names
...
This improves overall consistency of method names in the project.
For example, it does not make sense to get the reciprocal of a BigRational using reciprocal(), but get its numerator using getNumerator().
List of renamed methods:
- BigNumber::getSign() => sign()
- BigDecimal::getUnscaledValue() => unscaledValue()
- BigDecimal::getScale() => scale()
- BigDecimal::getIntegral() => integral()
- BigDecimal::getFraction() => fraction()
- BigRational::getNumerator() => numerator()
- BigRational::getDenominator() => denominator()
2015-07-03 16:17:23 +02:00
Benjamin Morel
da27465258
Refactor tests
2015-07-03 16:03:58 +02:00
Benjamin Morel
97c7c45c51
All BigNumber subclasses now have zero(), one() and ten() factory methods
...
These methods are optimized for re-usability, and other methods now internally use them.
2015-07-03 15:36:57 +02:00
Benjamin Morel
5fe1176af9
BigDecimal::toBigRational() does not simplify the fraction any more
2015-07-03 13:46:48 +02:00
Benjamin Morel
050329ca23
Add quotient and remainder methods to BigRational
2015-07-03 13:32:13 +02:00
Benjamin Morel
9418e2a337
Add BigDecimal::of() tests for float values INF and NAN
2015-06-30 13:45:51 +02:00
Benjamin Morel
1420202440
Exact division algorithm is now in BigDecimal::dividedBy()
...
BigRational::toBigDecimal() is now really just a proxy method to BigDecimal::dividedBy().
2015-06-28 22:51:02 +02:00
Benjamin Morel
7eeb9d3ca0
Parameters to BigNumber methods must be convertible to the current type
...
This applies to plus(), minus(), multipliedBy(), dividedBy().
2015-06-28 01:40:03 +02:00
Benjamin Morel
b3371daab2
BigDecimal::dividedByWithRounding() is now dividedToScale()
...
The $scale and $roundingMode parameters have been swapped.
2015-06-27 11:51:28 +02:00
Benjamin Morel
7376e828c2
Remove BigDecimal::dividedByExact(), now implemented by dividedBy()
2015-06-26 23:47:44 +02:00
Benjamin Morel
d0a91c6be1
Add missing BigInteger tests
2015-06-26 13:41:47 +02:00
Benjamin Morel
1b8b3e43bb
Add basic arithmetic operations to BigNumber
...
- BigInteger::dividedBy() previous implementation is now quotient()
- BigDecimal::dividedBy() previous implementation is now dividedByWithRounding()
2015-06-26 00:36:19 +02:00
Benjamin Morel
eae8ddc49f
Move min() and max() implementations to BigNumber
2015-06-23 13:24:12 +02:00
Benjamin Morel
77610f5fdc
Proper comparison of every BigNumber against all rational number formats
2015-06-22 22:42:10 +02:00
Benjamin Morel
27bc623b70
BigNumber::of() now throws NumberFormatException instead of InvalidArgumentException
...
This allows to catch all of() exceptions with the parent, ArithmeticException.
2015-06-22 22:13:19 +02:00
Benjamin Morel
d6aa1007a9
Introducing a specific RoundingNecessaryException
2015-06-22 21:53:32 +02:00
Benjamin Morel
ed8e1075e2
Introducing a specific DivisionByZeroException
2015-06-22 14:12:40 +02:00
Benjamin Morel
7680dcf634
Move ArithmeticException to an Exception sub-namespace
2015-06-22 13:57:47 +02:00
Benjamin Morel
c343e0aeb9
Merge of() factory methods in BigNumber
2015-06-22 12:50:44 +02:00
Benjamin Morel
41c34b1014
Add tests for BigDecimal::of() with leading zeros in exponent
2015-06-21 15:13:54 +02:00
Benjamin Morel
65d4dd75d6
Rename BigRational factory methods
...
- `BigRational::parse()` is now `of()`
- `BigRational::of()` is now `nd()`
This keeps BigRational in line with BigInteger and BigDecimal, whose `of()` factory method accepts a single parameter.
The new way to create a BigRational from two numbers is now called `nd()` for numerator/denominator.
2015-06-21 14:48:26 +02:00
Benjamin Morel
321c00281d
CS fixes
...
Shorthand "int" and "bool" are now used instead of "integer" and "boolean".
This makes more sense as the latter are not accepted as synonyms in PHP 7 scalar type hints and return types.
2015-06-21 14:37:51 +02:00
Benjamin Morel
12bea2c474
BigInteger::toString() is now toBase()
2015-06-21 14:21:28 +02:00
Benjamin Morel
3195126bbe
Introduce a common interface for big numbers
...
Note that to accommodate the interface, BigDecimal::toBigInteger() does not accept a rounding mode any more.
2015-06-20 10:55:33 +02:00
Benjamin Morel
540ff57c0e
Add BigDecimal::dividedByExact()
2015-06-20 10:37:29 +02:00
Benjamin Morel
8f296871f2
Add BigRational::toBigDecimal()
2015-06-20 00:36:01 +02:00
Benjamin Morel
7ef1c1fa0d
isFiniteDecimal() tests for negative values
2015-06-19 14:19:48 +02:00
Benjamin Morel
c9a518affc
Add BigRational::isFiniteDecimal()
2015-06-19 14:10:31 +02:00
Benjamin Morel
9a043bebf4
Add BigDecimal::toBigRational()
2015-06-19 13:09:44 +02:00
Benjamin Morel
ac691e01e5
Add BigDecimal::stripTrailingZeros()
2015-06-17 00:40:31 +02:00
Benjamin Morel
095ae53a9b
BigRational now implements Serializable
...
This allows for a more compact serialized representation.
2015-06-12 23:35:34 +02:00
Benjamin Morel
b1239d9f44
Add tests for lines not covered
2015-06-12 23:07:22 +02:00
Benjamin Morel
38e7c83089
Add a BigRational class to deal with fractions
2015-06-12 15:49:35 +02:00
Benjamin Morel
cc30889769
BigInteger::dividedBy() now always returns the quotient
...
Rounding is a concept left to BigDecimal only from now on.
2015-06-12 10:25:00 +00:00
Benjamin Morel
115455238b
Clean up unused imports
2015-06-12 01:20:44 +02:00
Benjamin Morel
0dcae82742
Remove useless of() call in tests
2015-06-12 01:17:42 +02:00
Benjamin Morel
4f4b9531ed
Add BigInteger::gcd()
...
This computes the greatest common divisor of two large integers.
2015-06-11 23:35:47 +02:00
Benjamin Morel
1f577afe11
Add BigInteger::remainder() method
...
This allows to return the remainder of the division only.
2015-06-11 22:31:07 +02:00
