Initial polynom of f (x) (its coefficients) 
The argument is a square matrix with elements 

Polynomial 
Variable x = 
Result of calculations 
Let's consider in this material one of laborconsuming tasks in the higher mathematics which sounds so: The polynomial is given a task to find to what
if the argument is a square matrix, that is
And if the principle of calculation is clear, especially if you in perfection understood how to multiply matrixes, then direct calculation, for me personally it is considered a routine which it is whenever possible necessary to avoid.
At once it would be desirable to tell where this calculator is useful. For teachers, teachers, for creators of textbooks, for those who need to create original tasks of this subject.
Also it is useful for students or graduate students who write papers, course, diplomas. For all others, it is an easy way to check a mistake in the set example, to solve, without long intermediate calculations, an objective.
When the calculator was written, it turned out that the websites which were posveshchenna to this subject contained mistakes in intermediate calculations and as as result were incorrect.
This calculator, I hope is saved from mistakes and you will be able safely to solve any examples.
As well as the vast majority of calculators on this website, values of both polynom coefficients, and matrix elements, can be complex values.
It for the end of 2017, more you will not find anywhere, apart from of course the special created mathematical programs.
Let's start examples?
To find value of a polynom from a matrix
Polynom 
Variable x = 
Result of calculations 
One more example
What the polynom is equal to if
Polynom 
Variable x = 
Result of calculations 
To find value of a polynomial from a complex matrix
Polynom 
Variable x = 
Result of calculations 
Successful calculations!