Real Switch
Syntax
y = rsw(p, x1, x2)
Description
Returns either x1 or x2 (double precision values) depending on the value of the argument p (which may be an expression evaluating to a double precision value):
y = x1 when p is TRUE
y = x2 otherwise
Example
y = lsw(t > 5.0, -1.0, 2*t)
