linspace

Turns a range into a linearly spaced sequence of values.

• Linspace::linspace returns an iterator.

• Linspace::linspace_array returns an array.

Only works on bounded ranges like Range and RangeInclusive.

Examples

Both of these will print [0, 25, 50, 75].

use linspace::*;

let x: Vec<u32> = (0..100).linspace(4).collect();
assert_eq!(x, [0, 25, 50, 75]);
println!("{:?}", x);

let y: [u32; 4] = (0..100).linspace_array();
assert_eq!(y, [0, 25, 50, 75]);
println!("{:?}", y);

assert_eq!(x, y);

Both inclusive and exclusive ranges can be used. And these will print [0, 25, 50, 75, 100].

use linspace::*;

let x: Vec<u32> = (0..=100).linspace(5).collect();
assert_eq!(x, [0, 25, 50, 75, 100]);
println!("{:?}", x);

let y: [u32; 5] = (0..=100).linspace_array();
assert_eq!(y, [0, 25, 50, 75, 100]);
println!("{:?}", y);

assert_eq!(x, y);

Want a non-linear range? That's also possible. After all, Linspace::linspace just returns an Iterator.

use linspace::*;

let x: Vec<f32> = (0.0..1.0)
    .linspace(10)
    .map(|z| 10.0f32.powf(z))
    .collect();
println!("{:?}", x);

Very convenient!