How do I use a user input for a desired number of decimal places in an fprintf or similar statement? The instructions are to use the user's input to display or print the correct number of decimal places once calculations are performed. Thanks!

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Jenel Darland 2017-3-5

评论： Jenel Darland 2017-3-6

I have tried using something like this to no avail:

fprintf('# Negative:\t\t\t\t\t%0.%f',decimal,neg)

Perhaps I need an sprintf statement or disp after the '# Negative' string? Any suggestions are most appreciated.

Stephen23 2017-3-5

According to the fprintf documentation: "The precision operator can be a number, or an asterisk (*) to refer to an argument."

"Example: The input arguments ('%6.4f', pi) are equivalent to ('%*.*f', 6, 4, pi)."

It works, try it:

>> fprintf('%.*f\n', 5, pi)
3.14159

Jenel Darland 2017-3-6

Ahh, I missed that the first time around. Thanks very much for your help!

Walter Roberson 2017-3-5

fprintf('whatever %.*f', decimal, neg)

Jenel Darland 2017-3-6

Thank you SO much! Sitting there for hours experimenting can get frustrating. Thanks again.

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