Function construct::cquad

pub fn cquad<T: Float>(
    smooth: T, 
    ab: Fn1<T>, 
    cd: Fn1<T>, 
    ac: Fn1<T>, 
    bd: Fn1<T>
) -> Fn2<T> where
    f64: Cast<T>, 

Constructs a curved quad by smoothing between boundary functions.