23.1.3  Approximate evaluation

The evalf or approx command evaluates a symbolic expression to a numeric approximation, if possible (see Section 7.3.1). The approximation is to Digits digits (see Section 2.5.1), this can be changed with an optional second argument.

Examples

Assuming that in the CAS configuration Digits=7, so hardware floats are used, and 7 digits are displayed:

You can change the number of digits in a command line by assigning the variable DIGITS or Digits.