dtrtrs(3) on Linux
The text 0f768196c594, as Debian 3.1 (Sarge) shipped it.
solve a triangular system of the form A * X = B or A**T * X = B,
The text 0f768196c594, as Debian 3.1 (Sarge) shipped it.
solve a triangular system of the form A * X = B or A**T * X = B,