12 releases
0.2.1 | Jul 18, 2024 |
---|---|
0.2.0 | Jul 18, 2024 |
0.1.2 | Apr 30, 2024 |
0.0.61 | Apr 23, 2023 |
0.0.5 | Feb 19, 2023 |
#462 in Rust patterns
23 downloads per month
71KB
2K
SLoC
Features
- 1D, 2D, 3D, ND (with custom variables) functions
- Set params and assign values (default is 0.0)
- Compute derivatives of any orders, gradients, hessian
- F1D can be numerically integrated
- Supports the following functions:
- Ln, Sin, Cos, Tan, Sec, Csc, ASin, ACos, ATan, Sinh, Cosh, Tanh, Coth, Sech, Csch, ASinh, ACosh, ATanh, Abs
- Some kind of expression semplification
Examples
use ruut_functions::{f3d, F3D};
fn main() {
let mut f = f3d!("x^3+y^2+yx^2+[eta]");
f.set_par("eta", 6.9);
assert_eq!(f.eval(0., 0., 0.), 6.9);
assert_eq!(
f.gradient(),
vec![f3d!("2xy+3x^2"), f3d!("2y+x^2"), f3d!("0")]
);
assert_eq!(
f.hessian(),
vec![
vec![f3d!("2y+6x"), f3d!("2x"), f3d!("0")],
vec![f3d!("2x"), f3d!("2"), f3d!("0")],
vec![f3d!("0"), f3d!("0"), f3d!("0")]
]
)
let f = f1d!("abs(x)+sin(x)");
assert_eq!(f.eval(-2),2.90929742683)
}
lib.rs
:
Crate for creating math functions from string and perform symbolic derivation