diff options
| author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-05-23 13:13:50 +0200 |
|---|---|---|
| committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-05-25 12:42:19 +0200 |
| commit | 3c2c52baecb6c8c2af62989462804af7765694c4 (patch) | |
| tree | d8fa87db9c675efbf8150f5afec196f4a114effb /doc/eval.texi | |
| parent | cf06e3e4dd8c1023fb1dcad905f3f77fdc1cf3fb (diff) | |
eval: implement not() expression
Diffstat (limited to 'doc/eval.texi')
| -rw-r--r-- | doc/eval.texi | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/doc/eval.texi b/doc/eval.texi index e07267bdfa..25c0ea6524 100644 --- a/doc/eval.texi +++ b/doc/eval.texi @@ -76,6 +76,9 @@ integer. For example, "trunc(-1.5)" is "-1.0". @item sqrt(expr) Compute the square root of @var{expr}. This is equivalent to "(@var{expr})^.5". + +@item not(expr) +Return 1.0 if @var{expr} is zero, 0.0 otherwise. @end table Note that: @@ -93,11 +96,6 @@ is equivalent to A*B + not(A)*C @end example -When A evaluates to either 1 or 0, that is the same as -@example -A*B + eq(A,0)*C -@end example - In your C code, you can extend the list of unary and binary functions, and define recognized constants, so that they are available for your expressions. |