| use crate::value::{Number, Value}; |
| use lazy_static::lazy_static; |
| use num_complex::{Complex, ComplexFloat}; |
| use std::collections::HashMap; |
| use std::f64::consts::PI; |
|
|
| type FunctionImplementation = Box<dyn Fn(&[Value]) -> Option<Value> + Send + Sync>; |
| lazy_static! { |
| pub static ref DEFAULT_FUNCTIONS: HashMap<&'static str, FunctionImplementation> = { |
| let mut map: HashMap<&'static str, FunctionImplementation> = HashMap::new(); |
|
|
| map.insert( |
| "sin", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.sin()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.sin()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "cos", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.cos()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.cos()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "tan", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.tan()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.tan()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "csc", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.sin().recip()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.sin().recip()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "sec", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.cos().recip()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.cos().recip()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "cot", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.tan().recip()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.tan().recip()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "invsin", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.asin()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.asin()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "invcos", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.acos()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.acos()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "invtan", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.atan()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.atan()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "invcsc", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.recip().asin()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.recip().asin()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "invsec", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real(real.recip().acos()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex(complex.recip().acos()))), |
| _ => None, |
| }), |
| ); |
|
|
| map.insert( |
| "invcot", |
| Box::new(|values| match values { |
| [Value::Number(Number::Real(real))] => Some(Value::Number(Number::Real((PI / 2.0 - real).atan()))), |
| [Value::Number(Number::Complex(complex))] => Some(Value::Number(Number::Complex((Complex::new(PI / 2.0, 0.0) - complex).atan()))), |
| _ => None, |
| }), |
| ); |
|
|
| map |
| }; |
| } |
|
|
