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jrodriguez-98-Gravel
8-Gravel
July 15, 2016
Solved

Simple programming operation, how to do it in Mathcad Prime 3.1?

How would you do this "If" and "Otherwise" operation in Mathcad Prime 3.1?  have no idea what command to use or how to start it.

b=  0.85 if f'c=4000 psi               1.05-0.05*f'c/a000 psi  if 4000 psi < f'c  8000 psi                  0.65  otherwise

please see attachment.

MJGAnswer
1-Visitor
July 15, 2016

I'm guessing b should be 0.85 if f'c is LESS THAN or equal to 4000 psi -- I doubt b should be 0.65 if f'c is 3500 psi.

This is one approach:

If you have to perform this calculation multiple times, I would suggest making it a function: b(f'c):=...

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5 replies

MJG1-VisitorAnswer
1-Visitor
July 15, 2016

I'm guessing b should be 0.85 if f'c is LESS THAN or equal to 4000 psi -- I doubt b should be 0.65 if f'c is 3500 psi.

This is one approach:

If you have to perform this calculation multiple times, I would suggest making it a function: b(f'c):=...

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jrodriguez-98-GravelAuthor
8-Gravel
July 15, 2016

Thank you very much. This answer is how it should be. Of course it does not look as neat as the text book but it does the work.

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MJG1-Visitor
1-Visitor
July 15, 2016

Mathcad 15 (and prior) is formatted the same as your textbook:

There are many differences between the legacy versions (15 and prior) and Prime.  This is one of them.

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VladimirN24-Ruby IV
24-Ruby IV
July 18, 2016

Juan,

You can start with the study of "PTC Mathcad Prime 3.1 Help Center", here is a "Programs" chapter: PTC Mathcad Prime 3.1 Help Center

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AndyWesterman12-Amethyst
12-Amethyst
July 18, 2016

It is possible to write it as chained 'if' statements (check the help centre.

Capture.PNG

Regards

Andy

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