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log10

Computes the log base 10 of a numeric type.

Prototype

	function log10 (
		value  : numeric   
	)

	return_val [dimsizes(value)] :  float or double

Arguments

value

An array of one or more values of any dimension value > 0.0

Return value

Returns a floating point array dimensioned the same as value.

The return type is floating point if the input is floating point, and double if the input is of type double.

Description

This function returns the base 10 logarithm of each element of value. Missing values are ignored.

See Also

exp log10

Examples

Example 1

  f = 3.4
  log10_f = log10(f)
  print(log10_f)        ; Should be 0.5314789

Errors

If value < 0.0, nan is returned.

If value &eq 0.0, -inf is returned.