kscience/kmath
9
0
Fork 1
Code Issues Pull Requests 6 Packages Projects Releases 16 Wiki Activity

Draft implementation of RemainderDivision algebra #119

Closed
CommanderTvis wants to merge 10 commits from rem-and-div into dev
pull from: rem-and-div
merge into: kscience:dev
Conversation 1 Commits 10 Files Changed 3 +11 -10
2 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit d7bc0d9f9b - Show all commits

8
kmath-core/src/commonMain/kotlin/scientifik/kmath/operations/OptionalOperations.kt
View File

@ -87,16 +87,16 @@ interface RemainderDivisionOperations<T> : RingOperations<T> {
/**
* Calculates the remainder of dividing this value by [arg].
*/
infix fun T.rem(arg: T): T
operator fun T.rem(arg: T): T
/**
* Performs the floored division of this value by [arg].
*/
infix fun T.div(arg: T): T
operator fun T.div(arg: T): T
override fun binaryOperation(operation: String, left: T, right: T): T = when (operation) {
REM_OPERATION -> left rem right
DIV_OPERATION -> left div right
REM_OPERATION -> left % right
DIV_OPERATION -> left / right
else -> super.binaryOperation(operation, left, right)
}

13
kmath-core/src/jvmMain/kotlin/scientifik/kmath/operations/BigNumbers.kt
View File

@ -14,14 +14,15 @@ object JBigIntegerField : Ring<BigInteger>, RemainderDivisionOperations<BigInteg
override val one: BigInteger
get() = BigInteger.ONE
override fun number(value: Number): BigInteger = BigInteger.valueOf(value.toLong())
override fun number(value: Number): BigInteger = value.toLong().toBigInteger()
override fun add(a: BigInteger, b: BigInteger): BigInteger = a.add(b)
override fun BigInteger.minus(b: BigInteger): BigInteger = this.subtract(b)
override fun multiply(a: BigInteger, k: Number): BigInteger = a.multiply(k.toInt().toBigInteger())
override fun BigInteger.minus(b: BigInteger): BigInteger = subtract(b)
override fun multiply(a: BigInteger, k: Number): BigInteger = a.multiply(k.toLong().toBigInteger())
override fun multiply(a: BigInteger, b: BigInteger): BigInteger = a.multiply(b)
override fun BigInteger.unaryMinus(): BigInteger = negate()
override infix fun BigInteger.div(arg: BigInteger): BigInteger = this.divide(arg)
override infix fun BigInteger.rem(arg: BigInteger): BigInteger = remainder(arg)
override fun BigInteger.div(arg: BigInteger): BigInteger = divide(arg)
override fun BigInteger.div(k: Number): BigInteger = this / k.toLong().toBigInteger()
override fun BigInteger.rem(arg: BigInteger): BigInteger = remainder(arg)
}
/**
@ -38,7 +39,7 @@ abstract class JBigDecimalFieldBase internal constructor(val mathContext: MathCo
override fun add(a: BigDecimal, b: BigDecimal): BigDecimal = a.add(b)
override fun BigDecimal.minus(b: BigDecimal): BigDecimal = subtract(b)
override fun number(value: Number): BigDecimal = BigDecimal.valueOf(value.toDouble())
override fun number(value: Number): BigDecimal = value.toDouble().toBigDecimal(mathContext)
override fun multiply(a: BigDecimal, k: Number): BigDecimal =
a.multiply(k.toDouble().toBigDecimal(mathContext), mathContext)