Mathcad

Hi everyone. I'm working with reliability and for many times I'm facing the problem that mathcad can't evaluate cnorm (x), when x is equal or bigger than 9; it returns 0. I read the comments related to the subject on https://community.ptc.com/t5/PTC-Mathcad-Questions/Standard-Normal-Dist/m-p/349437, but I couldn't solve the problem. It's not a problem that can be solved by going on format > results > tolerance (zero threshold) or tools > worksheet options > Built-in variables > convergence tolerance. I understand that mathcad can handle numbers up to 10^-307, but when solving an integral or, for example, applying cnorm function, the result is 0, when the number is less than 10^-17. I would be so thankful if someone could help me to solve this problem.

Dear Everyong, I have 2 Questions to you all help to some keys to me. (have attachment)1.How can we take the zero (0) element away in our matrix to create Matrix with non-zero element?2.how can we create the coordinate of each element form "Start Point or Origin" ? Thank you for your help. Best regard Phearun  

Hello everyone ! Someone can provide examples of finite element analysis calculations using 2D and 3D elements. If anyone has experiences with this type of calculation please help me. Thanks !

Hello,   I am working in mathcad prime 3.0 on an assignment and I am modeling a Trickle Bed Reactor (plug flow behavior). I have set up the mole balances, from which I know by now that they are correct. I use the odesolve function to solve a set of differential (and algebraic) equations. However when I plot the results I do not get the results I want. Attached is the file I made. I made a plot with the liquid concentrations of the components. I see only a difference in the concentration of A and I am wondering what I am doing wrong, because i should also a difference in the concentration of B and C.   Below a brief description on the case: I have three reactions. The third reaction does not take place due to a reaction rate constant which is zero.  A + H2 -> B B + H2 -> C A -> G (This reaction is not taking place)   I am feeding hydrogen in the gas phase to the reactor together with liquid component A. I have set up 9 mole balances. The solid phase is in

I am having trouble with a creating a cumulative result from a simple integral I have a set of 4 data (vectors) Y1,Y2,Y3,Y4 I take the min(Y1,Y2,Y3,Y4) at each value X I create an interpolated vector of the min envelope - interpolated data seems to match the “raw” as I plotted it And I want to calculate the cumulative integral of this min vector between f1 and f   For some reason mcad seem to be taking a very long time. Maybe he stuck in a loop   I suspect my cumulative integral is not set up correctly – Attached my test sheet   Thanks Regards   PS Found this discussion https://community.ptc.com/t5/PTC-Mathcad-Questions/Integrating-an-Array/m-p/539177#M179014 But the I cannot open the file attached by Fred

I met a bug when I try to plot a surface which is 10 000 units far away from the 0,0,0. MC 15 file is attached.

I'm using MathCad 3.1 and for some reason x in my function is always labeled as undefined and I can't figure out why. I played around with labeling the variables and such but it won't work. Normal functions work just fine. Is MathCad not able to do this?   A solution to a similar problem was done in mathcad 3.1 that worked fine, I could just enter 0 for x but i need to be able to use dp/dx in other equations    

Here's a simple model of an electric motor.  It works fine but I'd like to solve it with an added complication - a limit that current can only be 10A or less.  I couldn't figure out how to do it.  Any ideas?.  (4.0 attached) Thanks,

How do you install and activate this program? I have never received a product number and can't get a hold of anyone from PTC for tech support. This is a joke!

I downloaded Mathcad Express Prime 4,0 and Mathcad 15 today. Mathcad 15 seems to work fine and I can open legacy mcd files and then save them as xmcd files. However when I try to use the xmcd mcd converter function in Mathcad Prime 4.0, it does not work. I add a worksheet and then hit the convert function and it gives me the message that the PTC Prime xmcd, mcd converter has stopped working. I do not know how to fix this problem. Does anyone know how to get the converter to work? I get the same message for both mcd and xmcd worksheets. I am able to open both of the worksheets in Mathcad 15. Thanks.

Dear Everyone,How can I Create New Matric by divide Matric element by n-element (as attachment)?Many thank for replying. Best regard Phearun   Intial Elementthe Purpose of Quesrion

What command or operation i have to do in order to find the number of iterations performed for solving an Mathcad equation like f(x):=e^x-x       that has in the final the solution 0.5671?   I need to find the number of iterations in order to evaluate the efficiency of the solving method.   I searched a lot for this aspect and I'm surprised that nobody had this question until now.

Hi I'm newbie in Mathcad, I try to resolve a geometrical problem (vector analisys). I have a paper with mathcad 15 expression which solve my problem. But, I don't achieve to rewrite it in Prime, i don't find character and function Do you have an idea ? See it in Mathcad 15 :  

I need to create a spline for a repeating pattern 0 to 2PI.  The requirements are:   1) needs to be continuous and for the first derivative.   2) needs to start and end at the same point and have a continuous derivative.   3) one segment needs to be perfectly linear.     Any help would be appreciated.     Thanks

Dear Everyone, Could you suggest me how to unpack matric in Mathcad Prime?  (as PIC attached below) Many thank for your help.Best regard, Phearun.

    Dear Everyone,How can I Create New Matric by divide Matric element by n-element (as attachment)?Many thank for replying. Best regard PhearunInitail ElementPurpose of Question

Dear all,   I'm using Mathcad 15 M030 for analysing data. I got the "out of memory" error message if I paste the file I have attached in a mathcad table. I know that the topic has been already discussed in this forum but I didn't find any workaround. Is there in the meantime a new solution? Thank-you very much for your support.   Regards

In my 2D plot when I process about half million time steps I get an error message: "Unable to plot this too many points"   Any idea or clue where is wrong?   Regards

Fig. 1Fig. 2Fig. 3Fig. 3aFig. 3bFig. 4Fig. 4aFig. 5Fig. 6Fig. 7Animation   It is the site of the article Hybrid solution of the problemorJourney to the world of mathematics on Tchebyshev’s plantigrade machine  Chebyshev & MathcadOptimization & Animation  

Hey, guys! I'd like to ask you to help me solve two quizzes I stuck on. I guess I think of all possible solutions and even consider asking to write my paper on Math to solve these: 1. Which number is hidden behind the question mark? 2. What time does the last watch show?

I've been trying to figure out how to use mathcad since I didn't have any lectures about it in my university and I'm asigned a task that says to solve the equations by using mathcad. Could anyone help me out? I've pasted 2 photos of variables that we know and equations from which we need to find I1,I2..etc

Hello, What is the difference between a .mctx file and a .mcdx file. I know the former is a template, but it seems to be exactly the same as an mcdx.

Dear Everyone, How can I solve the root of equation as matrix as picture attachment (Red Circle)? Many thank for replying  

Hello   I'm trying to comptue the stress in ground below a circular loading, at differend depths, at different locations below the load.   The formula which I use, include Bessel's function. Reference to the formula can be found here: http://onlinepubs.trb.org/Onlinepubs/hrr/1963/39/39-004.pdf   The used formula is the equation 3c.   The formula seems to give reasonable answer with most locations and depths, but some depths seem to give strange stress values (peaks in the graphs).   Could someone explain why these errorneous values appear and if there is a way to overcome this problem.   Thank you for your help.

We have a Pi day - a math day - 3.14 today! One suprematic composition: "Cross, Circle, Birds (a duck), Fish (a flying fish) and.. Pi number". Can you create more fine and/or more interesting animations? The origin Mathcad-sheet is in attach!