math_test 1.0.0

Generates math questions for elementary school kids
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

use rand::Rng;
pub(crate) mod onevariable;
pub(crate) mod twovariables;
use crate::question::Question;

pub trait Equation: Question {
    fn choose_variable(max: i32) -> i32
    where
        Self: Sized,
    {
        loop {
            let mut rng = rand::thread_rng();
            let num = rng.gen_range(-max..max);
            //exclude 0
            if num != 0 {
                return num;
            }
        }
    }
}