9.4.1 Replacing small values by zero
The epsilon2zero
command replaces values close enough to zero by 0.
-
epsilon2zero takes
expr, an expression in x.
- epsilon2zero(expr) returns
expr where any values of modulus less than epsilon
(see Section 2.5.7, item 2.5.7, by default
epsilon=1e−12) are replaced by
zero. The expression is not evaluated.
Examples
With epsilon=1e−12 in the CAS configuration:
With epsilon=1e−12:
epsilon2zero((1e-13+x)*100000) |
With epsilon=0.0001: