Mathcad

Every time i want so save my file this error message appears? Do you know how to fix it?

Hello,   I found a wired behaviour using units in calculations. The result is slightly different if units are used in formula or not. See attached file. Both results must be identical, but they are not. I can even do the calculation in my head and the one with unit is false.   Cheers DPJB

Hello,   I am new to MathCad. I plotted the freefall equation and solved for x and z. Then I would like to plot the velocity, so x' and z' but get the error: "replace with complex values and NaNs by real numbers". It shouldn't have complex values and NaNs, I have checked the odesolve syntax, the time step and the units, but still can't find the mistake. Would appreciate help! The file is attached. Thanks in advance!   Ln

Hello folks,What would be the best approach finding the closest match of combination of given array of resistors which are connected in parallel?For example having a number of resistors in the database I would need to find two values which will give me the closest match for known equivalent parallel resistor?I am using full version of MathCadThanks!

Hi everyone, i would really appreciate if u could help me with this problem i have: I'm trying to write the units in the output for an excel component, the thing is that when I do that, it doesn't show when i write the variable. I don't know if I'm doing anything wrong. I watched a video where someone did the same and the units where there. I'm not able to do it anyway.  

Hello everyone,I wish to present a particular collection of periodic functions with relative spectra (it is attached,). I gladly accept criticism, even very negative. Thank you.

UPDATE 2014-10-14 (Description only):  On Saturday, October 11, 2014, I gave a presentation on this subject to my astronomy club.  I convereted my PowerPoint presentation to .jpgs and posted them as a public album on Facebook.  You can access this album with or without having a Facebook account at:  https://www.facebook.com/media/set/?set=a.10205329095573313.1073741856.1425866703&type=1&l=9730d636f9 .  There is also a video version (no sound) of the presentation at:  https://www.facebook.com/video.php?v=10205336473997769&set=vb.1425866703&type=3&theater .UPDATE 2014-10-07:  I have added a couple features to this worksheet and restructured the data to make it and the plots more useful.========================"What is the faintest object I can see in my telescope?" is a common question asked by amateur astronomers.  The answer depends on many variables.  For instance, is the object a star (point source) or a nebula or galax

After conversion to Prime 6.0, my simple program equation is not working but it is still calculate in MathCAD 15. Dont see any problem with the equations.   Please help   David

Is there a way to display only the output of an equation? For example, if I define: ...... Is there a way to only display the 93.6% later in the document? Without having the variable, Mcw_C6_V, displayed? I would like to summarize my calculations at the bottom of the document but allow them to change automatically if I change calculations earlier on in the document.  

Upgraded computer to Windows 10 and now cannot get Mathcad 15 to install with my product code.  Your website for license management wants a Host ID and I have no idea what that is.  Why does PTC make life so difficult.   Can you refund my money since i cannot install Mathcad 15 student edition on my computer now that it is upgraded to Windows 10.

I am trying to solve this equation system and I am getting the below error:    I have checked that all the matrix are 12x1  but I still get the same error. Can you please help me? Thank you very much in advance. 

Mathcad installation and support has to be the most user unfriendly software on the market.  I purchased Mathcad 15 M045 several years ago.  Then I later upgraded to M050.  Then I upgraded my computer from Windows 7 Pro 64 bit to Windows 10 Pro 64 bit.  I had to reinstall Mathcad 15.  If I run the Mathcad license exe file and enter my product code, it says the license is installed; however, there are no instructions on how to access the license.  When I run Mathcad 15, the product code is not my product code but some other product code that the installation used since I could not find any license on my computer.  It would be nice if PTC gave some instructions.  When I go to their licensing tool it says I would have to pay for an account upgrade to use the tool.  What gives with this company.  I have no idea if the product code the installation used is temporary or not.  If it is, I consider PTC now to be a switch and bait company.&

Help I'm trying to do circuit calculations on Mathcad but every time i try to put the units for amps A it shows up as (1/A)*A and cancels out how do I resolve this 

Prime 6 takes so much time to launch. And apparently nobody looks at the splash screen: Now carefully read what "PTC, the PTC logo, and all PTC product names" actually are now... As compared to what they were on a previous release:   Luc

Hello I do not have a lot of experience with mathcad. Please help me!I have to solve and ode which includes some equations. Now I can not calculate it because it says variabe undefined.Why that?

Hello everyone! I´m trying to solve a system of equations with vectors and the solver tell me that there is an error in the array... I put captures so you can see what im doing. Thanks to everyone!

Im trying to get mathcad to find values in a excelcomponet/matrix, but i am having some difficulties with multiple inputs. Is it somehow possible to input multiple values of S in a matrix, and return multiple values from the table shown?      

Hello   I should somehow solve an parameter with iterating several equations simultaneously.   In the attached sheet are to constants, equations and the "to be solved" parameter. The problem is that I don't know if "Given" "Find" system works for this kind of a problem... I would prefer a solution using programming i.e. with "Add line" operator, but I don't know how to program this.   Any help is appreciated.

I have a system of 4 first-order differential equations which can be solved with odesolve.   I want to use the statespace function, but it fails with a cryptic message. My system matrix is not in canonical form, but the documentation for statespace does not seem to require it. I am probably making some stupid mistake, but I don't see it.     Attached are Prime 6 worksheet and pdf.  

Hi Team,I would like to make axial fan flow curve using equation. application is air conditions inlet fan airflow design.please help out make curve with equation, equation should be dependent on radius. If I change radius the curve should be updated as per that.thanks,Madhu

I have an two variable equation.  I want to use one of the two variables as a range variable, and I need to solve the equation for the second variable.  I want to use the solution later as a function of the range variable. Very simplified example of equation I want to solve:  R-T I want to use R as a range variable, but get the solution for T for use later in the work sheet I have attached an example of the two variable equation.  In this example, I solved for D but R is defined.  I want to use R as a range variable and use the solution D as a function of that range variable.

Hi Please, would any one help me and write a code for estimating weibull parameters using the method of moments Thanks

Why is it like this and is there a way to just keep it as "kip"?   Thank you!

Dear all, As briefly described in the object, I’m looking for a solution that allows to convert a “string name” already defined in an Excel sheet to a variable name into the Mathcad Prime 6.0 doc.   Actually, I’m using the READEXCEL function to import string and values that will be used as the inputs for the rest of the Mathcad computation work. With reference to the figure attached, I’m trying to simply associate one-to-one the “meters_var” to the “meters_val”.   I think that working with an external input sheet is more robust to the variation of variable names and quantity and relative values, making the approach more automatic since the Excel formats are interfaceable with most of computation programs.Thanks in advance for your help

Hi,    I've got problem - after reinstalling my OS Windows 10, I cannot acquire express licence, "you have reached maximum number of licence..". I just need symbolic functions to complete term project.   Thanks for response,   JF