Arithmetic/Complex: Difference between revisions
Added Kotlin
(Restoring visibility of <math> tag content hidden by under-tested cosmetic edit at 01:25, 25 August 2016) |
(Added Kotlin) |
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julia> imag(z1)
3.0</lang>
=={{header|Kotlin}}==
<lang scala>// version 1.0.5-2
class Complex(val real: Double, val imag: Double) {
operator fun plus(other: Complex): Complex {
return Complex(this.real + other.real, this.imag + other.imag)
}
operator fun times(other: Complex): Complex {
return Complex(this.real * other.real - this.imag * other.imag,
this.real * other.imag + this.imag * other.real)
}
fun inv(): Complex {
val denom : Double = this.real * this.real + this.imag * this.imag
return Complex(this.real / denom, -this.imag / denom)
}
operator fun unaryMinus() : Complex {
return Complex(-this.real, -this.imag)
}
operator fun minus(other: Complex): Complex {
return this + (-other)
}
operator fun div(other: Complex): Complex {
return this * other.inv()
}
fun conj(): Complex {
return Complex(this.real, -this.imag)
}
override fun toString(): String {
if (this.imag >= 0.0)
return "${this.real} + ${this.imag}i"
else
return "${this.real} - ${-this.imag}i"
}
}
fun main(args: Array<String>) {
val x = Complex(1.0, 3.0)
val y = Complex(5.0, 2.0)
println("x = $x")
println("y = $y")
println("x + y = ${x + y}")
println("x - y = ${x - y}")
println("x * y = ${x * y}")
println("x / y = ${x / y}")
println("-x = ${-x}")
println("1 / x = ${x.inv()}")
println("x* = ${x.conj()}")
}</lang>
{{out}}
<pre>
x = 1.0 + 3.0i
y = 5.0 + 2.0i
x + y = 6.0 + 5.0i
x - y = -4.0 + 1.0i
x * y = -1.0 + 17.0i
x / y = 0.3793103448275862 + 0.4482758620689655i
-x = -1.0 - 3.0i
1 / x = 0.1 - 0.3i
x* = 1.0 - 3.0i
</pre>
=={{header|LFE}}==
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