Mathcad

And secons.I see C, R and Z in help but C, R,Z and Q in the list of symbols.

Hi,I was wondering if there was any way to use find given a set of differential equation. Here is a (simple) example : charge of an RC system.input voltage, and capacitor value are known. I want to find the resistor value such that, after a given time Tx, the capacitor voltage is Vx.Obviously, this example is simple enough to solve manually, but could this be applied to much more complex systems where manual solving is not an option.

hi,i would know the difference between mathcad 15 and mathcad prime 3.0.which version should i get?thanks

I'm having an issue with the "Readexcel" command in Mathcad Prime 3.0. I have an Excel spreadsheet that contains several cells of data that I'm importing into my Mathcad worksheet. My problem is that once Mathcad reads the Excel file I can't enter a new value in the Excel sheet and get Mathcad to import it without deleting the existing readexcel input and reentering it. I've tried closing and reopening the document to no avail. Is there a way to get Mathcad to reevaluate the input without deleting it and starting over?The cells I'm reading are part of a larger Excel worksheet and it would be easier to leave it as it's own worksheet rather than an embedded object in Mathcad. Thanks in advance.

Using Mathcad Prime 3.0 is it possible to chanee the background color to white?Mostly I take screen captures of my equations to paste into word, since the Mathcad page color is not really white I have to go through paint to get it right.If its not a feature any chance something simple like this can get into a future release.

I would like to show my students a symbol math in Mathcad and in Internet. But:

I saw prime 3.0 book and then I got some questionIn this picture, T has three "variables". it is mean " i , j , k "I tried to calculate differential about " r " but I got error.So I want to calculate in "solve block" But I am worried that I saw that "solve block" can calculate only "one variable"IS is right?and Now t has variables " i, j, k"" r " include " i " . so when " i " change, " r " is also changed.so the thing that I want to say is possible to get values about " r " when I calculate differential about " i "

I tried to know by searching "google" and "PTC site".But I don't know well. Just, I saw two posting. one is said that "vector" couldn't integrate the other is said that "vector is possible to integrate"so I felt confused..I need help.

<I hope to know. I spent time to know this method for 2 days >I was going to convert "range variable" to "vector"I finally finish to change.After that, I tried to integrate, but I couldn't do it.I could integrate before changing "range varable" to "vector"so I guess that the problem is due to "vector".could you give me advice? I attach my file. thank you for reading my question

Hello All,My program, for some particular cases, spends too much time on a "genfit" function and finally stops calculation (regression doesn’t converge).Is there a way to ask the program, that if it couldn't find the answer within a time interval (or limited number of iterations), forget about the particular case and continue to the next case?

There is a histigram of my students.(see the animation here - http://communities.ptc.com/videos/3543)I would like to use not cm but feet and inch: 4'9'', 5' ... 6'8''One templateHelp please!The Mathcad 15 file is in attach

Hello, Everyone. Thanks in advance for your time and help. Best Regards.

Hello,I was able to do this in 15 very easily, and that file is attached. However, I was unable to get the routine to work in Prime (unsurprisingly). As my university has removed the old mathcad program (and it will be dropped from support before long according to PTC) I was trying to atleast understand how to get the answer in Prime.I'm afraid the way in my earlier post of using a programming block didn't work as expected, and thus I'm unsure how to be able to get the maximum or minimum of an objective function in terms of varying parameters WITH constraints given that can over define the problem.

I would like to eliminate complex numbers from a vector yet hat includes both real and complex numbers.

I don't understand why the first moment of integration doesn't balance the beam.Anybody?

I have a question about the mathcad prime 3.0 I purchased. At the bottom it mentions the installation of mathcad 15 which I prefer to use. It says use the same product code that was given at the top but i already used it to download mathcad prime 3.0. Can I use both programs with the same code if i have already downloaded prime 3.0?

Hi,I'm new to this and i'm not even sure if this is the right group to ask the question.I am trying to come up with a program to calculate Current density requirement for different structures using DNV B401 current densities.i've attached the mathcad sheet which expains it best...please helpThankyou

Hello,i am not sure why the x and y values are so large in the graph. Thanks!

Mathcad 3.0 I am trying to set the width of the header independent of the width of the body of the document. Is this possible? It appears the header size is dependent upon the margin size. If the margin size is set to narrow, the header is very short and appears not to be able to be adjusted. What I would like to do is set the document body for narrow margins with approximately 15 lines of text capability in the header. Is this possible?

Hi all.I am trying to write a program that will increment a value of x by a predetermined amount, run through a few equations, and then re-evaluate that condition. If that condition is not met, return the value of x to H_loop.I have attached the program, "loophelp". You will have to change the line in the program "H_loop" from "STDD > STDD_allow" to "STDD < STDD_allow" for it to run.I wrote a program that was very similar in structure to the right of the program I am having trouble getting to work. I am not understanding why that one runs with no issue, but the one on the left will sit and spin its wheels ad infintium.Thanks for any help.-JW

Corresponding math formatting worksheet- see For the Love of Reading blog post

I finally success to calculate my work by using "vector"SO I want to say "thank you" for all people that they helped me.After calculating, I did read data "CL" by using "if" in case of each conditions.I got strange values that I couldn't understand.so I writing this site about my problem after truble.could you give me advice for me?

Hello everyone.I need to create matrices formed by a variable number of columns of data extracted from a table based on input values. Attached is a sample sheet so you can better understand what you want to achieveThanks in advance

2014-11-25:  Minor update.  I don't know why I was defining "Case" the hard way.========================Streets with curbs and gutters are a key component in the overland conveyance of storm drainage.  The purpose of the attached documents is to estimate the hydraulic capacity of one-half of a street cross-section for various conditions.The attached .zip file contains five documents:  two Mathcad Prime 3.0 worksheets, Adobe .pdf copies of the two worksheets for users of other versions of Mathcad, and an Excel spreadsheet that nearly duplicates one of the Mathcad worksheets.  The genesis of these worksheets is a vintage 1989 SuperCalc 5 spreadsheet that I created for a storm drainage master plan.  When I decided to create a Mathcad version of these calculations, I decided to also update and improve the spreadsheet in Excel.  Although this added quite a bit of time to this process (creating nested IF statements in Excel to mimic the two programs I wrote