Mathcad

I would like to remind all users that, with respect to the unit of measurement corresponding to 1000.0kg, there are differences, depending on the country where you are, and that Mathcad takes this into account. so you have to be careful:

Having already discovered mathcad's rpm "unit" is radians per min and not rotations. I am having a new issue trying to figure out why I'm getting incorrect solutions for power. Wrong  Correct Thanks 

Appreciate if you help to fix the error in the attached sheet Thanks in advanced

How to differentiate complex vector matrix expressions (quadratic forms, parametrically dependent matrices)? In mathematics, this is done by creating rules; I don’t know anything about other software packages.For example:Q1=x^T*A*x, and dQ1/dx=???Q2=x^T*B(x)*x, and dQ2/dx=??? x is a vector, and A and B are matrices.I know how to differentiate this manually, but I need Mathcad to do it automatically.

Whilst playing around with some array extraction functions, I noticed that Mathcad Prime 8 partially restores Mathcad 15's ability to directly use ranges as function arguments.               Stuart

In Mathcad Prime I am unable to divide the expression by zero is there any alternate method available?

Why do I use the find function to solve the value of c and x1, but the value of x1 and c can't be found?

So I downloaded a huge zip file for my IT dept to install Prime 7File was : MED-60893-CD-270_7-0-0-0.zip about the size to fit on a CD.IT dude installed it and it morphed into Prime 8.Our licence server currently not set up for Prime 8 but  only for prime 7 and below.I work for a huge bureaucracy so getting a Prime 8 licence installed will take more than 6 months  even though we pay for the licence maintenance. ( I am not joking).So where can i get a Prime 7 installer - so that I can hold the IT guys hand and click the mouse for him.  

Hello PTC fam,I don't know where did I do wrong in this programe.the question isDetermine least square method value of coefficients Ci( i=0,...,m) in polynomial form.Calculate the approximation error  where m=3 Please advice.Regards,Adlil

Need help with part c of the question, I have attached my Mathcad file where I have tried to solve for radius with an effectiveness factor of 0.97. Please Help!

Hello, I'm new to MATHCAD. I was wondering if the following Dynamic Motions problem can be plotted in MATHCAD prime. If so, please show me how! The plot would need to be just like in the picture. 

I'm setting up a program that will loop through a large # of trials (random process), and recording the result of each trial. Is there a mechanism that will allow monitoring of the output as the program progresses - say each time a loop is complete - rather than waiting for the program to complete its full complement of trails? This way I can see how the resulting statistics accumulate. I'm too impatient to wait for the whole thing to finish before getting an idea of what the results look like. Lou

Hi everyone,I would like to show a different jpg image depending on a certain result.Say for example that I have three sketches, saved in the active directory:sketchA.jpgsketchB.jpgsketchC.jpgThe three sketches have similar but not perfectly identical pixel number. I perform a certain calculation, that e.g. produces x as a result.Is it possible, using for example a conditional READ_IMAGE(), to let appear e.g. sketchA if x<=0, sketchB if 0<x<1 and sketchC if x>=1 ?I am actually using MathCAD 15.0.  But would this functionality be available also in MathCAD Prime?How would you implement this functionality?Thanks a lot for any hintBest regardsClaudio

 Dear friends! Tell me honestly: 1) I knew that the chain sags not along a parabola 2) I knew about the physical meaning of the parameter a of a catenary 3) I knew about a catenary number pi? See please the attach! I am waiting for your ansvers in this form 1 - yes 2 - no 3 - yes for example

I wrote and attached a basic worksheet to demonstrate what I am trying to achieve. I can get the solution by defining each part one-by-one like you will see on the attached sheet, but that is going to be too tedious on my main worksheet. A program or other built in function would be ideal.  Thanks in advance for the help. 

There is a chain on the wall. What should be its length S so that the force F is minimal.Below is one of the numerical solutions of the problem.Is it possible to find an analytical solution. Not 1.258 but one expression!Attach file Mathcad 15

I converted the worksheet from Mathcad 15 to prime but somehow the genfit function is not working in Prime. Attached the error message.  I will not be able to upload the worksheet. Any suggestions would be appreciated 

Hi,I need help with using if statements with matrices. I don't think masking will help here since the code should be able to determine if the friction angle is 0 or not.  If anyone could help find a solution, I'd really appreciate it. This is my 3rd week of using mathcad - currently trying to transfer all our company's geotechnical excel worksheets to mathcad.

It's great to see the symbolic engine being improved.  However, it would be nice to see a long-standing symbolic/numeric behavioural alignment problem fixed.   The numeric engine will iterate over a vector in a for loop but the symbolic engine does not, which requires workarounds that make the code more complex than need be.   For example,     Stuart  

Hi, This is probably my 2nd week of using mathcad and I've stumbled into a few difficulties. 1) Originally, I wanted to try to distinguish between granular and cohesive soils. For Fines content of less than 50%, this should be classified as granular while greater or equal to 50% must be classified as cohesive soils. I wasn't able to do this so I ended up getting the overburden and effective stresses by interpolating the unit weights. Can someone help write a code that can get the final effective stress by distinguishing whether it is granular or cohesive material?2) In the tab N60 Correction for Overburden Stress, the answers are wrong - I tried this using excel but I don't know why the results from the excel file are not similar to the mathcad file. Hope someone can help!

Hope this gets through. I am locked out, the message says the account hasbeen locked! Is there anyone who can address this?On the other matter, I gave up, the academic license for Prime 7 costs toomuch for me. I will convert my Mathcad 15 .mcd files via Prime 3.0 (which Istill have), and then use Mathcad Express to do calculations.Anwar

I have been using Mathcad 15 for a long time, and have many programs in it. Now that it has been abandoned by the company, can I get a working copy or get an up to date license? I do not want to move to Prime, just to keep using my existing MathCad 15. 

HiI need to define the max. and min. values for different graphs using some simple functions,for example 1.2 times the max. computed X -value.This was possible with Mathcad 15, but is it somehow possible with Prime 7?What I have found so far, is that a user can only set max. and min. values manually, which is far from handy... Also "Trace" option is missing from Prime... As attached is a screen shot from Mathcad15 to illustrate what I mean.

I've been trying to get to grips with odesolve, but I keep getting the error "too few initial conditions"As far as I can see I have two equations to solve and two initial conditions - could someone help me work out what I'm missing please?  

HiAfter converting some Mathcad 15 sheets to Prime 7, I noted that all subscripts in texts were converted to plain text font. There are some text editing tools in Prime 7, but I think possibility of usage of subscripts and superscripts in texts is must. I really hope these font options will be possible in near future... Or have I missed some way to get these font options working in Prime 7? As attached is a screenshot from Mathcad 15 where these font types were available.