Function float

Syntax:

Arguments and Values:

number—a real.

prototype—a float.

float—a float.

Description:

12.6.0 4float converts a real number to a float.

If a prototype is supplied, a float is returned that is mathematically equal to number but has the same format as prototype.

If prototype is not supplied, then if the number is already a float, it is returned; otherwise, a float is returned that is mathematically equal to number but is a single float.

Examples:

 (float 0) → 0.0
 (float 1 .5) → 1.0
 (float 1.0) → 1.0
 (float 1/2) → 0.5
→ 1.0d0
OR→ 1.0
 (eql (float 1.0 1.0d0) 1.0d0) → true

Side Effects:

None.

Affected By:

None.

Exceptional Situations:

None.

See Also:

coerce

Notes:

None.