Matrix user forums

Hello MM,

It was several times for me when I encountered limitations of Flowcode which allows to create only 1-dimensional array variable, like variable_array. I would love to be able to create a two or even three dimensional array variables for calculation which require matrices (for example Euler angle, or Quaternion calculations), like 2-dimensional variable_array[j]. Finally you are MATRIX multimedia I would find this to be very useful, and would expand flowcode capabilities. And I think it is not a very big change, programming wise.

Best regards,
Mantas

Hi,

You might be interested to take a look at this post :

http://www.matrixmultimedia.com/mmforum ... pic#p37105

Regards,
Ivan

Hi Mantas,
I can make something using Sean's concept..
http://www.matrixmultimedia.com/mmforum ... ray#p35962
If you want...

HI Mantas,
After spending 1 hour, I have manged to make 2D array without c code using the 1D array. you can use that as normal 2D array. In the example code, I have 2 macro for write to and read from array. I have to take pre-caution as array starts at 0 index. And need to consider problem in reading location like (1,2) and (2,1) are different..

In the beginning of the code you will see Array_row and Array_column which will determine your 1D array size and also 2D array indexes. So be-careful in using 2D array as I have declared the string (1D array) with size 40. So you can use row*column max 40 but you can edit that to increase. In the example, you can write data using row and column index (remember for 0 as start ) in the write macro and can retrieve that using the read macro..
Hope that will be useful..

Hello Ivan and Enamul,

Also matrix and matrix manipulation features would be very useful.

Answer from Ben:
Agreed, I will think up a way to get this in.

This sounds promising, i think it would be great to get that in the 5.4 update for ARM.

Enamul, as you saw, I have already posted in Seans article, and it works, but only if you want to store constants, but then reaching them is a pain in the ass. I managed to finish my complex SPA project using 3 dimensional arrays, in the supplementary code, but I had in mind matrix manipulations, as quoted above. Yes your program works, but it is too much of a hassle, and if you wanted to make complex mathematical operations like matrix operations, you would put a huge burden on your shoulders, while trying to complete such calculations like for example the Eulers angles or quaternions. It would be nice to have a native support for matrices. Anyway, thanks for your input making this program, I think someone might find it useful

Best regards,
Mantas

By the way, just wanted to add, that something like matrix operations in matlab would be very convenient.

Regards,
Mantas