multiply matrices java
public class Matrix {
private double[][] multiply(double[][] matrixOne, double[][] matrixTwo) {
assert matrixOne[0].length == matrixTwo.length: "width of matrix one must be equal to height of matrix two";
double[][] product = new double[matrixOne.length][matrixTwo[0].length];
//fills output matrix with 0's
for(short l = 0; l<matrixOne.length; l++) {
for(short m = 0; m<matrixTwo[0].length; m++) {
product[l][m] = 0;
}
}
//takes the dot product of the rows and columns and adds them to output matrix
for(short i = 0; i<matrixOne.length; i++) {
for(short j = 0; j<matrixTwo[0].length; j++) {
for(short k = 0; k<matrixOne[0].length; k++) {
product[i][j] += matrixOne[i][k] * matrixTwo[k][j];
}
}
}
return product;
}
}