====== Vector and Matrix ======
===== Important facts =====
  * vector and matrix function blocks have a rewriting input
    * the block numbering is therefore very important
  * memory allocation has to be done by using the //Create// block or by variable (automatic allocation)

===== Basic vector and matrix handling =====
Vecotrs are a special form of matrices. The handling in iCon-L is the same, therefore the following examples are shown for matrices.
==== By line ====

Normaly you shoud use them by connecting the different functionblocks by line

{{:de:public:user_s_documents:icon-l:applications:matrixbyline.png?direct&300 |Connect via line}}

==== Definition by connection ====
Another way is to use variables, for the same handling, the variable has to defined as //definition by connection (reference)//

{{:de:public:user_s_documents:icon-l:applications:matrixbyvariablereference.png?direct&400 |}}
{{ :de:public:user_s_documents:icon-l:applications:variablereference.png?direct&400 |}}

==== Automatic allocation ====
If you define the variable with automatic allocation and you want to initialize the matrix you do it like this

{{:de:public:user_s_documents:icon-l:applications:matrixbyautomaticallocation.png?direct&400 |}}
{{ :de:public:user_s_documents:icon-l:applications:variableautomaticallocation.png?direct&390 |}}

<note important>Do not use the //Create Matrix// block</note>
==== File operation ====

If you want to load a saved matrix from a file system, at first you have to allocate the memory by using the //Create Matrix// block

{{:de:public:user_s_documents:icon-l:applications:matrixloadfromfile.png?direct&300 |}}