fun log(x: Double, base: Double): Double
Platform and version requirements: Kotlin 1.2
fun log(x: Float, base: Float): Float
Platform and version requirements: Kotlin 1.2
Computes the logarithm of the value x to the given base.
Special cases:
log(x, b)
is NaN
if either x
or b
are NaN
log(x, b)
is NaN
when x < 0
or b <= 0
or b == 1.0
log(+Inf, +Inf)
is NaN
log(+Inf, b)
is +Inf
for b > 1
and -Inf
for b < 1
log(0.0, b)
is -Inf
for b > 1
and +Inf
for b > 1
See also logarithm functions for common fixed bases: ln, log10 and log2.
© 2010–2018 JetBrains s.r.o.
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.math/log.html