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

improve newtons_method test

Browse Source
This commit is contained in:
Simon Gardling 2022-05-18 14:55:30 -04:00
parent e7e82a72b2
commit d665b72a4c
1 changed files with 28 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
tests/misc.rs
View File

@ -170,8 +170,35 @@ fn newtons_method() {
&|x: f64| x.powf(2.0) - 1.0,
&|x: f64| 2.0 * x,
&3.0,
&(0.0..10.0),
&(0.0..5.0),
&f64::EPSILON,
);
assert_eq!(data, Some(1.0));
let data = newtons_method(
&|x: f64| x.sin(),
&|x: f64| x.cos(),
&3.0,
&(2.95..3.18),
&f64::EPSILON,
);
assert_eq!(data, Some(std::f64::consts::PI));
let data = newtons_method(
&|x: f64| x.sin(),
&|_: f64| f64::NAN,
&0.0,
&(-10.0..10.0),
&f64::EPSILON,
);
assert_eq!(data, None);
let data = newtons_method(
&|_: f64| f64::NAN,
&|x: f64| x.sin(),
&0.0,
&(-10.0..10.0),
&f64::EPSILON,
);
assert_eq!(data, None);
}