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Crystals ManualChapter 11: Matrix Calculations[Top] [Index] Manuals generated on Wednesday 27 April 2011 11.1: The Basic Matrix Calculator \MATRIX\MATRIX A B MM TM MT TT TRANS INV EIG ACC2A ACC2B EXECUTE END \MATRIX A 1 2 3 4 5 6 7 8 9 B 4 5 6 7 8 9 10 11 12 MM END
CRYSTALS contains a simple calculator for processing 3x3 matrices. Two
matrices, A and B, can be input and operated on. The result is output to
the screen and left in an accumulator. It can be transfered to A or B
for further operations. There is currently no interface to any stored
crystallographic information.
\MATRIX
A
Followed by the nine values for the matrix A by rows
B
Followed by the nine values for the matrix B by rows
MM
Accumulator = AxB
TM
Accumulator = A'xB
MT
Accumulator = AxB'
TT
Accumulator = A'xB'
TRANS
Accumulator = A'
INV
Accumulator = A1
EIG
Accumulator = Eigenvectors of A
ACC2A
Matrix A = Accumulator
ACC2B
Matrix B = Accumulator
EXECUTE
Forces execution of the last directive

© Copyright Chemical Crystallography Laboratory, Oxford, 2011. Comments or queries to Richard Cooper  richard.cooper@chem.ox.ac.uk Telephone +44 1865 285019. This page last changed on Wednesday 27 April 2011.