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new to matlab simple question

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HrMmz
HrMmz 2016-11-28
评论： bio lim 2016-11-28
when you do a computation ie c=(b+a)/2 will this automatically display in matlab? i'm new to MATLAB but not programming at all and was just wondering if there is a display command or if all calculations are displayed which would make most sense to me since MATLAB is just math calculations...

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bio lim
bio lim 2016-11-28
编辑：bio lim 2016-11-28
Yes it will, assuming that you have previously defined the values for a,b,c obviously.
If you write semicolon at the end of your c=(b+a)/2; then it won't display.
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HrMmz
HrMmz 2016-11-28
okay wait, so to display the command you just leave out the semi-colon am I understanding that right? Also one more thing..
Sorry more beginner stuff..
So if I leave out a semi colon ie..
a + (b-a)*rand()
%gives uniform random values in the interval [a,b]
c = (b+a)/2
%calculating mean of values of mean between 1 and 2
((b-a)^2)/12
those commands are line by line and will just output a display? makes sense thanks..
bio lim
bio lim 2016-11-28
Yes, all of them will display their outputs on new lines. If I run your above program with (in this case it won't give any outputs since we ended it with semicolons):
a = 1;
b = 2;
My output in command window is:
ans =
1.8147
c =
1.5000
ans =
0.0833
Also, if you don't define a variable when you are doing an operation, e.g., ((b-a)^2)/12, MATLAB names the output ans.

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