PTC Mathcad - Smooth Exchange between the Symbolic and Numeric Solvers

[@derbau-informatiker1733]

By the way, the German word "Bau-Informatik" stands actually for the specialization "Building-Computer Science". These are people who deal specifically with computer science in the construction industry. They are also often called "dash computer scientists” because they are the link (dash) between the two disciplines of civil engineering on the one hand and computer science on the other. Is there also a job title for such people in your language area? I haven't been able to find that much yet. Until now I would only translate freely my channel name or job title “Der Bau-Informatiker” to “The Building-Computer Scientist”.

[@PatJHeffernan]

Thanks for that. I have not come across such a term in english. I used to work with our IT folks for installations during construction, but have never heard a relatable term before.

[@sergeydukman5832]

Dear Pat, I greatly appreciate your work of doing Mathcad videos. Those are spot on and exceedingly helpful. Thank you very much.

[@PatJHeffernan]

Super Sergey… I’m glad you are enjoying them! 👍🏻

[@AsserMunch]

Hi, great stuff as always, thanks for your videos! I have a problem that I guess is a bit tricky to explain. If I want to solve a problem, and use symbolic values, I can't figure out how to define ('save') the output from a solve function containing a symbolic value. In an exercise, a force is given as 'F' and dimensions as multiples of 'a'. With the solve function and explicit parameter, as you show in this video, yes, I can get the output I want, but it remains undefined until I define 'F' and 'a' as numerical values. I would need the values in further equations, so I want to achieve a valuable defined using symbolic values. Maybe I'm missing something basic? I hope it makes sense. Thanks :)

[@derbau-informatiker1733]

I am glad that you find my method helpful. However, if you continue to work with it, e.g. building up dependencies between individual formulas, I had to face problems since release 7 of MathCAD Prime. As I explained in this tutorial (link below) where I demonstrate the engineer's beam theory (Euler-Bernoulli), which leads to functional dependencies of internal forces. If you encounter a similar problem and find a solution for it, please let me know. In case it is just a bug in the software, maybe you can then use your contacts at PTC to point it out to them. After all, they don't seem to be aware of this workflow. If they have not recommended it to you. kzbin.info/www/bejne/n2G9gZqkmbCigK8

[@PatJHeffernan]

I’ll have a look at your video. Thanks.

[@Omarfa25_]

Thank u for your content Dr. I have a challenge, and here it is: Defined V= 6.80 m3 h=1.5 m and tryn to assume L= 2*b I want to solve this volume expresion V = h*L*b of a rectangle septic tank, solving for b hope u can help me, thank u in advance

[@PatJHeffernan]

Hi Omar. This seems less a Mathcad problem than an algebra problem. 2*b^2=V/h... isolate for b and solve.

[@Omarfa25_]

@@PatJHeffernan Yes indeed, but i wanted to do it unmanually

[@PatJHeffernan]

I'm sure you could configure it using a solve block and constraints if you wanted to.