kotlin-stdlib/kotlin.math/ln

ln

expect fun ln(x: Double): Double(source)
expect fun ln(x: Float): Float(source)

Computes the natural logarithm (base E) of the value x.

Special cases:

  • ln(NaN) is NaN

  • ln(x) is NaN when x < 0.0

  • ln(+Inf) is +Inf

  • ln(0.0) is -Inf

Since Kotlin

1.2
actual inline fun ln(x: Double): Double(source)
actual inline fun ln(x: Float): Float(source)

Computes the natural logarithm (base E) of the value x.

Special cases:

  • ln(NaN) is NaN

  • ln(x) is NaN when x < 0.0

  • ln(+Inf) is +Inf

  • ln(0.0) is -Inf

Since Kotlin

1.2
actual inline fun ln(x: Double): Double(source)
actual inline fun ln(x: Float): Float(source)

Computes the natural logarithm (base E) of the value x.

Special cases:

  • ln(NaN) is NaN

  • ln(x) is NaN when x < 0.0

  • ln(+Inf) is +Inf

  • ln(0.0) is -Inf

Since Kotlin

1.2
actual external fun ln(x: Double): Double(source)
actual external fun ln(x: Float): Float(source)

Computes the natural logarithm (base E) of the value x.

Special cases:

  • ln(NaN) is NaN

  • ln(x) is NaN when x < 0.0

  • ln(+Inf) is +Inf

  • ln(0.0) is -Inf

Since Kotlin

1.3
actual fun ln(x: Double): Double(source)
actual fun ln(x: Float): Float(source)

Computes the natural logarithm (base E) of the value x.

Special cases:

  • ln(NaN) is NaN

  • ln(x) is NaN when x < 0.0

  • ln(+Inf) is +Inf

  • ln(0.0) is -Inf

Since Kotlin

1.8
actual fun ln(x: Double): Double(source)
actual fun ln(x: Float): Float(source)

Computes the natural logarithm (base E) of the value x.

Special cases:

  • ln(NaN) is NaN

  • ln(x) is NaN when x < 0.0

  • ln(+Inf) is +Inf

  • ln(0.0) is -Inf

Since Kotlin

1.8