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author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
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committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
tree | 4464880c571602d54f6ae114729bf62a89518057 /noao/digiphot/daophot/daolib/mvmul.x | |
download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'noao/digiphot/daophot/daolib/mvmul.x')
-rw-r--r-- | noao/digiphot/daophot/daolib/mvmul.x | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/noao/digiphot/daophot/daolib/mvmul.x b/noao/digiphot/daophot/daolib/mvmul.x new file mode 100644 index 00000000..352def99 --- /dev/null +++ b/noao/digiphot/daophot/daolib/mvmul.x @@ -0,0 +1,48 @@ +# MVMUL -- Multply a matrix (left-hand side) by a one dimensional vector +# (right-hand side) and return the resultant vector. + +procedure mvmul (matrix, maxdim, dim, vector, result) + +real matrix [maxdim, maxdim] # input matrix +int maxdim # maximum size of input matrix +int dim # dimension of matrix and vectors +real vector[maxdim] # input vector +real result[maxdim] # iutput vector + +double sum +int i, j + +begin + do i = 1, dim { + sum = 0.0 + do j = 1, dim + sum = sum + double (matrix[j,i]) * double(vector[j]) + result[i] = sum + } + +end + + +# DMVMUL -- Multply a matrix (left-hand side) by a one dimensional vector +# (right-hand side) and return the resultant vector. + +procedure dmvmul (matrix, maxdim, dim, vector, result) + +double matrix [maxdim, maxdim] # input matrix +int maxdim # maximum size of input matrix +int dim # dimension of matrix and vectors +double vector[maxdim] # input vector +double result[maxdim] # iutput vector + +double sum +int i, j + +begin + do i = 1, dim { + sum = 0.0d0 + do j = 1, dim + sum = sum + (matrix[j,i] * vector[j]) + result[i] = sum + } + +end |