getDeterminent method
Implementation
double getDeterminent() {
assert(shape.item1 == shape.item2);
if (shape.item1 == 2) {
var a = values[0][0];
var b = values[0][1];
var c = values[1][0];
var d = values[1][1];
return a * d - b * c;
}
var subshape = Tuple2(shape.item1 - 1, shape.item2 - 1);
return sum([
for (var i in range(end: shape.item1))
(i % 2 == 0 ? 1 : -1) *
(Array.fromValue(values[0][i], shape: subshape) * _subMatrix(0, i))
.getDeterminent()
]);
}