Finding maximum integer between [100,200] divisible by 21?

I want use "for" and "while" to get the result.

[Jan]

This sounds like a homework question. Using for and while will be hard, but one or the other is smart enough. Please post, what you have tried so far and ask a specific question. The forum will not solve your homework. You need one line of code only, therefore it is hard to give some hints without posting the complete solution.

Answer 1

[Torsten]

n = 200 - mod(200,21)

Answer 2

[Jan]

Hints:

• The vector of number from 100 to 200:

100:200

• Dividable by 21:

mod(x, 21) == 0

• The maximum value can be found by the max() command, or by find(y, 1, 'last')