Re: Help for inversing function.

[kleysonr]

Thank you for the anwser,

I have already tried that, but it works only for diff(data, 1) and I need
also include the first element in the begin of the vector:

data = [73; 83; 135; 200; 288; 300; 267; 251; 302; 381]

> [data cumsum([73;diff(data,1)])]
ans =

    73    73
    83    83
   135   135
   200   200
   288   288
   300   300
   267   267
   251   251
   302   302
   381   381

But for diff(data, 2), doesn't work.

> [orig cumsum([73;83;diff(orig,2)],2)]
ans =

    73    73
    83    83
   135    42
   200    13
   288    23
   300   -76
   267   -45
   251    17
   302    67
   381    28

Regards.
Kleyson Rios.

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