Mathcad

Why can't MathCAD solve this equation? It obviously works after simplifying it manually first as shown in the last step. But how can i get MathCAD to do it in the previous step?

I need to sum all elements of an array.  Is there a function that does this?

I am trying to invert a matrix using the variable names already declared.  I can invert the matrix if I manually enter the values of the variables, but not using the variable names.   I am obviously missing something and would be grateful for any guidance towards resolving the issue.   I attach the entire worksheet but I am only interested in comments on step 5 where the matrix manipulation appears.  I have left notes on the draft section of the page to show what the variable values are and what the problem is.   Kind regards and New Year's greetings to all.

First of all a happy prosperous and especially healthy 2019 to all! I have apparently a misunderstanding when to use indexing versus vectorisation. In the attached worksheet indexing works but vectorisation doesn't. Could someone help me out with this because I seem to be lost. Best regards, Filip

Happy new 2019 year with Mathcad 15 and Mathcad Prime too! I suggest the Mathcad users to raise a glass of wine on New Year's Eve, but not in the traditional way, but in a new way: to finish the animation shown below - pour wine into a glass and tilt the glass, showing the third projection!  

Dear all,I want to remove the straight line coming in the x-axis at the point -0.3in my attached plot.Please go through the attached plot.Thanks.

Hi all  I am doing a calculation of RLC circuit in MathCAD, but I am facing to a problem with usage of "i" ( notation of complex number) as shown bellow: Please help me to treat this .    Best regards,  

Hello! Is there any way to create the matrix "K" automatically? And put free expressions in the other matrix called "B"?    

how to plot graph from table or from excel in Mathcad ?

Prime 5.0 Electric Circuit  When L=1 my Mathcad sheet shows no error. When L=2 the sheet has an error.   I want to know the reason of my error.      

I'm not sure what's going on here.  I'm reading in a file and trying to get Mathcad 4.0 to add units to a column.  But it's not working as planned.  Tried a few different variations but always get the same issue.  What am I doing wrong?  

Hi Friends,   I am trying to write a formula for evaluating some conditional statement. I have an old pdf of that Mathcad sheet where all these calculation had been done but unfortunately I do not have this file with me. Can anyone tell me how can I combine return statement with if statement as shown in attached image.    This is also done in Mathcad but do not know the version. I am now using Mathcad prime 3.1 to do the same thing. I can use IF statement with else function here to get the desired output but first preference to write the formula in a similar way as shown in figure attached.   Thanks

Is there anyone converting my file mcdx to Xmcd or mcd?

Hello everyone. how to open a Worksheet file of mathcad prime 5 in Mathcad 15 ?

I am in school and trying to work through this example in the book. It all works out except the Theoretical Flow Rate which the book specifies as 15.3 GPM. From a little research I believe the issue is with how MathCad defines rpm but I can not figure it out.  Any help would be greatly appreciated, Frank 

Is there any way to generate the voltage and current equations from spice netlist using Mathcad prime 5.0??

Hello,   I have been trying to solve this equation however no matter what I tried, I couldn't come up with an answer. All the functions appearing in the differential equation is defined but at the end, it can not solve. What is the problem? I also included the file I am trying to solve.

Hello,   can anybody help me to find out why this FIND doesn't work?   Raiko

Hello since im trying to find the unknown with 6 different initial values and 6 non-linear equations I try to use find but I cant obtain the value but there is one variables in the equation got counter.Hope u guys can check for me.

I wanted to create the Y BUS matrix from Netlist and solve that to get currents and voltages of each node.   For this i need to know how to solve the AX=B in matrix format, if all matrices(A,X and B) having variables only, I want X in terms of Varibales(eqn)   Please check the 29th page of this pdf: http://www3.imperial.ac.uk/pls/portallive/docs/1/7292571.PDF

How to insert values previously obtained into a table (as shown in the last of the attached file) without manually typing them. and trace the graph pV.    

Is there an option in Mathcad where I can solve more equations that depend on each other?There will always only be one value that is unknown. Hope you can help me 🙂  

why the same inverse is not working in program?, but outside its working fine,  Please check the attachment.

Hi all,I want to get some knowledge about MathCAD Prime and for better understanding I made some simple calculations.I have done a simple example to get familiar with MathCAD solving functions.I want to calculate the charging time of a capacitor for two different voltage thresholds. have attached a pdf file of my MathCAD sheet.What I have done in MathCAD delivers the right results but the intermediate steps are wrong.Can someone explain me what I have done wrong?Thank you for your help!