iDevOS CALC "LOG" Command

Get the natural logarithm of a value.

Description

CALC( y, a, "LOG" );  // y = log(a) = natural logarithm of a

This command returns the value y which is the natural logarithm of a.

Parameters

y

Calculation result.
Parameter type: entity name of a numeric variable (eg U8, S32, FLT3 etc).

a

Input value.
Parameter type: immediate number, or entity name of a numeric variable (eg U8, S32, FLT3 etc).

"LOG"

CALC command operator.
Parameter type: immediate string.

Examples

Example 1

VAR(d,  0.0,  FLT4);
VAR(a1, 1.27, FLT4);
VAR(a2, 8,    S32);

CALC(d, a1, "LOG"); // d = 0.2390
CALC(d, a2, "LOG"); // d = 2.0794