9.4.3 List of variables and of expressions
The lvar command finds the
variables and non-rational that make up an expression.
-
lvar takes
expr, an expression.
- lvar(expr) returns a list of
variable names and non-rational expressions such that expr
its argument is a rational function with respect
to the variables and expressions of the list.
Examples
| lvar(x*y*sin(x)^2+ln(x)*cos(y)) |
| lvar(y+x*sqrt(z)+y*sin(x)) |