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Hi All,Is there an inbuilt matlab command for performing chain (recirsive or I don't know what to call it), addition and multiplication.In the sense, a=[1, 2, 3, 4]Applying rcursive_addition(a) should yield [1, 1+2, 1+2+3, 1+2+3+4].And similarly multiplication.I do not want to use 'for' loop.Thanks for your attention.

cumsum(a) and cumprod(a)

so I was only a minute away from my answer... thanks so much mikeoz.

Also take a look at filter() for the cases where you want to sum x elem at a time. It is flexible (eg. sum only the t-3 and t-1) and extremely fast.For products it would not suit though....