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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 4a9495cf30..7d8106b89e 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. |