public static double max(Matrix u) {
double max = -Double.MAX_VALUE;
for (MatrixEntry matrixEntry : u) {
max = Math.max(max, matrixEntry.getValue());
}
return max;
}
public static double min(Matrix u) {
double min = Double.MAX_VALUE;
for (MatrixEntry matrixEntry : u) {
min = Math.min(min, matrixEntry.getValue());
}
return min;
}
public void scaleEquals(double scaleFactor) {
// Iterators loop over all values, or all nonzero, values in "this".
// The resulting matrix doesn't need to element-wise multiply the
// zero values, since the result would be zero anyway.
for (MatrixEntry e : this) {
e.setValue(e.getValue() * scaleFactor);
}
}
/**
* Inline element-wise multiplication of the elements in <code>this</code> and <code>matrix</code>
* , modifies the elements of <code>this</code>
*
* @param matrix Must have same dimensions <code>this</code>
*/
public void dotTimesEquals(final AbstractMTJMatrix matrix) {
// make sure the matrices are the same dimension
this.assertSameDimensions(matrix);
// Iterators loop over all values, or all nonzero, values in "this".
// The resulting matrix doesn't need to element-wise multiply the
// zero values, since the result would be zero anyway.
for (MatrixEntry e : this) {
double otherValue = matrix.getElement(e.getRowIndex(), e.getColumnIndex());
e.setValue(e.getValue() * otherValue);
}
}