MATLAB: How to multiply the column in matlab..

Here i have attached the Excel file, in this i should calculate the column 2 and column 3 has to be multiply.so, for that i need some commands, please help me friends.

Best Answer

Just use the : operator in the row position to collect all rows and a specific column number in the column position. NB: also that * is matrix multiplication so if you want the element-wise multiplication as would presume from the question you do, you have to use the "dot" operator .*

p=x(:,2).*x(:,3);

assuming the array read from Excel is in variable x

See the help page on Arithmetic Operators under the Language Fundamentals section in *Getting Started" section or

doc  times % for direct link from command line for details

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MATLAB: How to write this logic in MATLAB..

 new_x = x + [0;x(1:end-1)];

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