Numerical Functions - JUMO LOGOSCREEN 601 Manual

8 Functions
8.3

Numerical functions

Admissible data types
Argument: REAL
Result: REAL
ABS (IN)
Returns the absolute value of IN.
Example:
IN := -2.3;
OUT := ABS(IN); (* OUT = 2.3 *)
SQRT (IN)
Returns the square root of IN.
If IN is negative, the error value 5.0E+37 is returned.
Example:
IN := 4.0;
OUT := SQRT(IN); (* OUT = 2.0 *)
LN (IN)
Returns the natural logarithm of IN.
Example:
IN := 2.718282;
OUT := LN(IN);
(* 2.718282 = number e (rounded); OUT = 1.0 (rounded) *)
LOG (IN)
Returns the base 10 logarithm of IN.
Example:
IN := 100.0;
OUT := LOG(IN); (* OUT = 2.0 *)
EXP (IN)
Returns the natural exponential function of IN.
Example:
IN := 2.0;
OUT := EXP(IN); (* OUT = 7.389056 *)
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