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some more refactoring

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This commit is contained in:
Simon Gardling
2023-12-04 13:18:09 -05:00
parent 159bb1122b
commit 8902c986f8
7 changed files with 102 additions and 89 deletions
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52
tests/misc.rs
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@@ -141,10 +141,18 @@ fn invalid_hashed_storage() {
#[test]
fn newtons_method() {
use parsing::BackingFunction;
use parsing::FlatExWrapper;
fn get_flatexwrapper(func: &str) -> FlatExWrapper {
let mut backing_func = BackingFunction::new(func).unwrap();
backing_func.get_function_derivative(0).clone()
}
use ytbn_graphing_software::newtons_method;
let data = newtons_method(
&|x: f64| x.powf(2.0) - 1.0,
&|x: f64| 2.0 * x,
&get_flatexwrapper("x^2 -1"),
&get_flatexwrapper("2x"),
3.0,
&(0.0..5.0),
f64::EPSILON,
@@ -152,49 +160,13 @@ fn newtons_method() {
assert_eq!(data, Some(1.0));
let data = newtons_method(
&|x: f64| x.sin(),
&|x: f64| x.cos(),
&get_flatexwrapper("sin(x)"),
&get_flatexwrapper("cos(x)"),
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);
let data = newtons_method(
&|_: f64| f64::INFINITY,
&|x: f64| x.sin(),
0.0,
&(-10.0..10.0),
f64::EPSILON,
);
assert_eq!(data, None);
let data = newtons_method(
&|x: f64| x.sin(),
&|_: f64| f64::INFINITY,
0.0,
&(-10.0..10.0),
f64::EPSILON,
);
assert_eq!(data, None);
}
#[test]