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LU decomposition: Difference between revisions
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Updated D entry
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Line 686:
std.array, std.conv, std.string, std.range;
bool isRectangular(T)(in T[][] m)
//return all!(r => r.length == m[0].length)(m);
return !canFind!(r => r.length != m[0].length)(m);
}
bool isSquare(T)(in T[][] m)
return isRectangular(m) && m[0].length == m.length;
}
T[][] matrixMul(T)(in T[][] A, in T[][] B) /*pure*/ nothrow
in {
assert(A.length && B.length);
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