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functions

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karen
karen 2012-4-30
I have to write a matlab function, function [in,fr]=infr(x) that takes an array x of real numbers and returns arrays in and fr holding the integral and fractional parts respectively of all the numbers in array x but don't know where to start.
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Jan
Jan 2012-5-1
You don't know, where to start. The give us some tips: Do you have a computer already? With installed operating system? Did you install Matlab already? Do you know how to write a function and save it as M-file? Did you try anything to solve your homework by your own?

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回答（1 个）

Andrei Bobrov
Andrei Bobrov 2012-4-30
infr = @(x)[fix(x),rem(x,1)]
or:
function [in, fr] = infr(x)
in = fix(x);
fr = rem(x,1);
end
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Geoff
Geoff 2012-5-1
Often, I think, when a student doesn't know where to begin they also don't know how to ask the right question.
Richard Brown
Richard Brown 2012-5-1
+1 Geoff.
It could have been improved by "Any hints to get me started?", but she wasn't asking for a full solution

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