### 5.1.7 Evaluating booleans

The Maple command evalb evaluates a boolean expression (see Section 5.1). Since Xcas evaluates booleans automatically, it includes a evalb command only here for compatibility and is equivalent to eval (see Section 9.1.1).

- evalb takes bool, a boolean expression.
- evalb(bool) returns 1 if bool is true and returns 0 otherwise.

#### Examples

evalb(sqrt(2)>1.41)

or:

sqrt(2)>1.41

1 |  |  |  |  |  |  |  |  |  |

evalb(sqrt(2)>1.42)

or:

sqrt(2)>1.42

0 |  |  |  |  |  |  |  |  |  |