`input` code snippets in matlab

using input form from user, use for and while loops for the number and the shape provided in matlab

write a script which will calculate the value of cos(x) (ask the user for the value of x and n) : ( ) ∑( ) = − − − = − + − = − n k k k k x x x x 1 2( 1) 1 2 4 2( 1)! in matlab