PsiLAB Help Manual Page

Section: Basic Matrix functions

Name: =<-.>

Subtract a constant from the elements of the matrix a.
The result is stored in an already allocated matrix c.
c.{i,j,k,...} <- a.{i,j,k,...} - b

Both matrices a and b must have the same size and dimension. The resulting matrix c is of the same size, type and dimension.
Supported types: [ int,float,complex ]
[ c:('a, 'b, 'c) Matrix.t ] =<->
a:('a, 'b, 'c) Matrix.t *
b:'a

Example: 
[] let i = imatrix ~dim:[50;40] ~rand:[1000] () ;; 
val i : (int, '_a, '_b) Matrix.t = <abstr> 
[] let c = imatrix ~dim:[50;40] ;; 
let j = imatrix ~dim:[50;40] ~rand:[1000] () ;; 
[] c =<-> (i,1) ;; 
- unit

With the operator =<.-> , the matrix and constant are interchanged.
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