C.2.5. - Other things
The name
pi is special.
It represents the constant 3.14159....
Only one line of input is allowed, but you can have multiple expressions on that line separated by semicolons. When you have multiple expressions, the whole group is evaluated for the first data point (i = 0), then for the next data point (i = 1) and so on. If you have no points, the expressions won't be evaluated.
An expression preceded by the word
once will only be evaluated
for the first point (i
= 0).
You can enter the expressions on the command line from C-PLOT or when prompted. If you enter just a dot as the expression, as in
fn . .,
the same input line is used as the last time.
Spaces aren't significant in the expressions.