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+--- Thread: Matrix to Vector (/thread-19807.html)
Matrix to Vector - Amer7 - 04-14-2023 10:11 AM
Hi,
I'm facing some issues again around matrices.
When I multiply two matrices and the product of a matrix is [1,1] Matrix, I want to turn this Matrix to a Vector [1].
lets say
M22 is my matrix [1,1]
when i type
M23:=vector(M22);
It doesn't work, why I need this vector is to be able to be able to multiply matrix by a vector. - And later view the Values in Matrix editor Using EDITMAT()
Like In Matrix menu - There is an option to Edit, Delete, Vect, Send
When You press Vect it vectorises the matrix turning it [1] I need this, but what is the programing command?
Because when I use M22[1,1] in this form
Ss0:=M22[1,1];
M75:=M20*Ss0;
EDITMAT(M75,"Matrix product of M20 and Ss0");
I get Input Error
RE: Matrix to Vector - Joe Horn - 04-14-2023 12:20 PM
Use the REDIM command. E.g. REDIM( [[ 11,22,33 ]] , 3) yields [ 1,2,3 ]. See the built-in Help screen for more info about REDIM.
RE: Matrix to Vector - Amer7 - 04-15-2023 10:04 AM
(04-14-2023 12:20 PM)Joe Horn Wrote: Use the REDIM command. E.g. REDIM( [[ 11,22,33 ]] , 3) yields [ 1,2,3 ]. See the built-in Help screen for more info about REDIM.
Thank you very much it works perfectly
Basically
If I want exp. Matrix M57 to be a vector ie. 1x1
REDIM(57,1);
Example:
Local M11,M57;
M11:=M1xM2;
M57:=REDIM(M11,1);
EDITMAT(M57, "vector matrix value is this");
Just a precaution
If you were to Multiply this REDIM(57) "vector" and you get like invalid size, input error etc. Do it like M1*M57(1);
Works like aCharm,
Thank you!