For

For(start, test, incr, body)

evaluates start, and then iteratively body and incr as long as test evaluates to True.

For(start, test, incr)

evaluates only incr and no body.

For(start, test)

runs the loop without any body.

See:

• Wikipedia - For loop

Examples

Compute the factorial of 10 using For:

>> n := 1
>> For(i=1, i<=10, i=i+1, n = n * i)
>> n
3628800

>> n == 10!
True

>> n := 1
>> For(i=1, i<=10, i=i+1, If(i > 5, Return(i)); n = n * i)
6

>> n
120

Related terms

Break, Continue, Do, While

Implementation status

• ✅ - full supported

Github

• Implementation of For