ziko/src/math/adapted/index.js

A versatile JavaScript library offering a rich set of Hyperscript Based UI components, advanced mathematical utilities, interactivity ,animations, client side routing and more ...

export const adapted_cos = x =>{
    if(x.isComplex?.()) return new x.constructor(
            Math.cos(x.a)*Math.cosh(x.b),
            -(Math.sin(x.a)*Math.sinh(x.b))
    );
    return Math.cos(x)
}