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ASHOK VARDHAN on 13 Aug 2019
Commented: Steven Lord on 13 Aug 2019
you are designing a rectangular page to contain 60 inch^2 of printing with a 4 inch margin at the top and bottom and a 2 inch margin at each side. what overall dimensions will minimize the amount of paper used?


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Geoff Hayes
Geoff Hayes on 13 Aug 2019
Ashok - please copy and paste the full error message to this question. Also, what is the intent behind this line of code
e= diff(e, b) == 0;
Geoff Hayes
Geoff Hayes on 13 Aug 2019
Ashok's answer moved here
this is the error i am getting
Error in solve (line 357)
warnIfParams(parameters, conditions);
Error in matlab (line 8)
behind this line e= diff(e, b) == 0; the meaning is to get a an equation by differentiating e with respect to b and solve to it
Steven Lord
Steven Lord on 13 Aug 2019
Ashok, that doesn't look like the full text of the error message. Copy and paste all the text displayed in red. The exact text of the error message likely will be useful in determining the exact cause of the problem and how to correct it.
And just stylistically: while calling your script matlab.m shouldn't cause any problems, I recommend using a more descriptive and more easily discoverable name. Something like codeForProblem2.m would more clearly indicate the code's purpose at a glance in your OS's file system UI.

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