MATLAB: What is the reason of putting a dot when writting an equation using matlab? for example: y=x.*z+c.^2

a dot (.) an equation

what is the reason of putting a dot when writing an equation using matlab? for example: y=x.*z+c.^2, thanx

Best Answer

The dot indicates element-wise as opposed to array operations.

See the documentation on Array vs. Matrix Operations for details.

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 help punct

gives you

... Continuation. Three or more periods at the end of a line continue 
      the current command or function call onto the next line. Three or 
      more periods before the end of a line cause MATLAB to ignore the 
      remaining text on the current line and continue the command or 
      function call onto the next line. This effectively makes a comment 
      out of anything on the current line that follows the periods.

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