matrix - matlab showing 0 for small number values product -

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i have matrix elements have small values. taking product of elements of matrix 100 times. if take matrix 10*10 shows output when take matrix 100*100 shows 0. think shows 0 because product appears small value. how take product small value should display.

try typing:

format long

it should , rounding problem. format 8 decimals. if want go matlab default settings type:

format short

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