Function solve 

pub fn solve<T>(a: &Array<T>, b: &Array<T>, options: MatProp) -> Array<T>
where
    T: HasAfEnum + FloatingPoint,

Solve a system of equations

Parameters

• a is the coefficient matrix
• b has the measured values
• options determine the various properties of matrix a

The options parameter currently needs to be either NONE, LOWER or UPPER, other values are not supported yet.

Return Values

An Array which is the matrix of unknown variables