titaniumtown/YTBN-Graphing-Software
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add misc::almost_variable

Browse Source
This commit is contained in:
Simon Gardling 2022-05-16 11:25:30 -04:00
parent d620f41b28
commit 1f39756998
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/misc.rs
View File

@ -304,6 +304,20 @@ pub fn step_helper(max_i: usize, min_x: &f64, step: &f64) -> Vec<f64> {
(0..max_i).map(|x| (x as f64 * step) + min_x).collect() (0..max_i).map(|x| (x as f64 * step) + min_x).collect()
} }
/// Attempts to see what variable `x` is almost
// TODO: use in hovering over points
#[allow(dead_code)]
pub fn almost_variable(x: f64) -> Option<char> {
const EPSILON: f32 = f32::EPSILON * 2.0;
if emath::almost_equal(x as f32, std::f32::consts::E, EPSILON) {
return Some('e');
} else if emath::almost_equal(x as f32, std::f32::consts::PI, EPSILON) {
return Some('π');
} else {
None
}
}
pub const HASH_LENGTH: usize = 8; pub const HASH_LENGTH: usize = 8;
#[allow(dead_code)] #[allow(dead_code)]