
4Ć116 FST Configuration
Original Ć June 1990CE4.2:CL6211
LN LN
59
INSTRUCTION NAME: LN (natural logarithm) ( Invalid for Computing Controller )
DESCRIPTION : This instruction takes the natural logarithm (base e) of the SVA input. The SVD
input remains unchanged. When the SVA input is zero or a negative number, the SVA output is
always -45.05457.
GRAPHIC REPRESENTATION: SYMBOLIC REPRESENTATION:
0
t
0
t
1
INPUT
OUTPUT
100
0
1
t
0
t
1
2
3
4
5
-45
f(x)
CONFIGURATION FORMAT: LN (
Comment >>
OPERAND DESCRIPTIONS:
Comment - A comment up to 255 characters long.
FUNCTION EQUATIONS:
SVA(out) = ln[SVA(in)]
SVD(out) = SVD(in)
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