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modeling-app/docs/kcl-std/functions/std-math-log.md
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log Function in std::math Compute the logarithm of the number with respect to an arbitrary base. manual

Compute the logarithm of the number with respect to an arbitrary base.

log(
  @input: number,
  base: number(_),
): number

The result might not be correctly rounded owing to implementation details; log2 can produce more accurate results for base 2, and log10 can produce more accurate results for base 10.

Arguments

Name Type Description Required
input number The number to compute the logarithm of. Yes
base number(_) The base of the logarithm. Yes

Returns

number - A number

Examples

exampleSketch = startSketchOn(XZ)
  |> startProfile(at = [0, 0])
  |> line(end = [log(100, base = 5), 0])
  |> line(end = [5, 8])
  |> line(end = [-10, 0])
  |> close()

example = extrude(exampleSketch, length = 5)

Rendered example of log 0