Why when on the default Overview tab does it not show all content?
I have missed many threads because of this and cannot understand why. Is anyone else having this issue?
↧
Overview Tab - Community
↧
Pressure-viscosity coeffcient [m^2 / N]
Hi and good evening.
Does anybody know if there is a way I can put in the units of pressure-viscosity coeffcient which is [m^2 / N] in Mathcad Prime 3.0 ?
If I do it 'manually' they become some black and other blue. See picture.
Regards. Alexander J.
(I also uploaded the file I'm workin on)
↧
↧
How to convert audio file to prn file
Does anyone know how to convert an audio file, like a wav or mp3 file, to a data file, like a prn file of voltage vs. time, that can be read by Mathcad? And then after manipulations in Mathcad converted back to an audio file? Or an audio file to a csv file?
↧
Minimize & Maximize in Mathcad 15 and Prime 3
I have an error by using Minimize & Maximize in Mathcad 15.
But all is OK in Prime 3
Why?
↧
MathCAD 15 - Can't do 3-D Plotting
MathCAD 15, can't do 3-D plotting - gets a pop up which is a dead window. The widgett opens blank, hesitates, then opens.
↧
↧
The Magnificent Seven of Mathcad
I have written an article
Solvers or The Magnificent Seven of Mathcad
See please in attach a Russian and English (a google translation) version of the article.
I hope it will be interesting for Mathcad users.
One ask.
Can sombody correct the English text?
Valery Ochkov
↧
Operations with matrice array
Hello PTC community, thanks for taking your time to check this post out. I dont know if mathcad can do this but im pretty sure it can for what Ive seen. I want to make the sum of multiplying a component of a vector with a component of a matrice in an especific column, then with the next component of the vector with the second row in the same column and so on. Details are attached in the document. Thanks for all!
PS. If you are familiarized with chemical engineering, the problem I want to solve is a multicomponent destilation tower with the rigorous method ( I think its the Amundson-Pointnen method)
↧
Controls do not preserve their saved state
Hi,
When I check into Mathcad help, in the controls section, I can read this: “When you open a worksheet, Mathcad re-initializes all of the controls contained within the file. As a result, Mathcad may reset certain controls - typically, list boxes - and thus not preserve their saved state.” I wanted to know if it is possible that a control (list box or check box) would not be re-initialized each time a worksheet is opened. I would like to have the state of the control saved. Is there a script line who could do that?
Thanks a lot!
↧
Direction Field of Lotka-Volterra ODE
Dear PTC Community,
for my studies I have to analyse the Lotka-Volterra ODE System. Now I want to use some plot like the following:
There you can see the Direction Field of the ODE in a phase plot. The standard equations are like:
Also I found the invariant of the System:
Question is: how to make such nice looking direction field plot? From which equation is this going out? I am using Prime 2
Thanks so far
Patrick
PS: I come across this
http://communities.ptc.com/docs/DOC-3503
but dont know anything to do...
↧
↧
Problems with using function solve blocks
Hello All
I am new to Mathcad and I am currently trying to use function solve blocks but i am getting an error that says initial guesses must consist of numbers and matrices. I am not able to figure out where I am going wrong and how to rectify it.I have enclosed my worksheet
↧
Doubts regarding Minimize function
Hello All
I am new to mathcad and I am working with the minimize function to get an appropriate value of A to get the minimum torque.I have given torque as an objective function.I have a few questions on this.
1.I am not sure where do you place the objective function in a mathcad worksheet?.
2.Also is it permitted to use an If statement inside a solve block?
I have attached my worksheet as it is giving me an error
↧
Animating beyond 999 frames
Way back in the days of the Collaboratory there was a thread http://communities.ptc.com/message/45030#45030 discussing how to get longer animations beyond 999 (or 9999!).
The main point is that the dialog box is sized in one (microsoft) way and the characters being typed in by some (microsoft) font size. As the versions have come and gone the available space for the ### characters has reduced, limiting the animation length.
Unfortunately the pictures have been lost, so I'm wondering if anyone knows the right settings for changing the screen DPI (if this is what is need) to get a bigger dialog box, and also to change the system font that Mathcad is using (to something smaller) so that I can get at least 9999 (four) digits of animation.
Ideally I'd like to be able to animate at regular display DPI, yet get at least 1100 FRAMES (i.e. enter 4 characters in the dialog box)
I'm using V15M030 on XP (home) and on W7 (work).
Philip
↧
Plotting Problem (Mathcad Prime 3.0)
Hello and good rest of the evening.
I'm having a trouble with plotting a function (pressure distribution in a hydrodynamic film bearing).
I know how it should approximatly 'look' but am not getting the correct shape.
I've of course used the help etc. but can't seem to find out what the problem is. I've attached my mcdx file.
This is what I get:
and this is what I should be getting, approx.
Best regards Alexander
↧
↧
Solve block with ranges
Hello my friends,
I know that solve block doesnt work with ranges, but a good friend gave me an example in the worksheet im going to insert(he has solved me a lot of doubts and kinda feel ashamed to bother him again). If you could explain me that way of solving the range, or if you have another way to solve it , it would be great. The example is right after calculating the K matrix, the problem i want to solve is down the bottom of the sheet. Also if you have any suggestion to simplify my worksheet, it would be great.
Thanks for your time, I hope everyone have a great day!
↧
Solution extremely sensitive to guess value
Hello All
I am doing a minimization of the torque in mathcad and the solution that i am getting is heavily influenced by the guess values and each time I change the guess value a,b etc even by a small amount,it gives me a different answer. I really am not sure why it is doing that and also how am I going to rectify it.I have enclosed my worksheet . Any help would be greatly appreciated
↧
mathcad 13 installation on Windows 8
Hi,
I have Mathcad 13.1 that I used to use with Windows XP. Now my computer has windows 8 and I want to install MC13 onto it. I tried it but it doesn't properly install on Windows 8. Is it possible to install MC13 onto Windows 8?
Thanks.
Mark.
↧
Debugging and Mathcad animation
I have created I think most difficult function of IAPWS-IF97 formulation - the function wspV3PT(p, T) - specific volume (of density) of water/steam near the critical point (region 3) - see the description this function and the link on my on line calculation here
http://www.iapws.org/relguide/IF97-Rev.html
Mathcad animation has a lot helped me to find bugs my wspV3PT function!
See one animation above!
↧
↧
Minimize & Maximize in Mathcad 15 and Prime 3
I have an error by using Minimize & Maximize in Mathcad 15.
But all is OK in Prime 3
Why?
↧
Units with exponentiations
Hi,
I'm having trouble with units when using exponentiated variables. I'm trying to assign a variable a value (fck) while having another variable depend on the first one (fctm). It works fine if I only multiply the first variable with a constant, but if I also try to exponentiate the first variable my units (MPa) get messed up (see fctmERROR). However if I replace the first variable with the numerical value I assigned to it my units works as they should (see fctmWORKING).
Trying to forcibly remove the messed up unit only breaks the whole thing (fctmERROR2).
I have attached an image to better understand the problem:
Also attached is a file with the error in question.
Im using MathCAD Express Prime 3.0 F000 (2013.09.12.003/3.0.0.194) running on Win 8.1 x64
↧
help..
Hi,
This could be more of a conceptual question than mathcad probelm...
Here in this file, I have a set of equations representing a feed back model.
According to my what i am expecting with the graphs.. like the N.s/c.s graph. the N.m/C.m graph should also be constant over time without fluctuating over time.. I am not sure what causes this... can any one help me figuring this out?
↧