diff (Matlab function)
Differences and approximate derivatives
- Y = diff(X[,n])
For this kind of use of diff (dim parameter not given), Matlab works on the first non-singleton dimension of X what Scilab does not. In this case, Scilab considers dim to be "*" so that diff threats all values of X, what Matlab does not.
- Y = diff(X,n,dim)
If dimension given by dim reaches 1 before n iterations have been done, Matlab switches to next non-singleton dimension, but Scilab does not, use mtlb_diff to get equivalent results.
When n is greater than all existing dimensions of X, Matlab returns  what Scilab may not give for all inputs.
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