Mathcad

I have defined every variable except for Lb. I thought with it being defined as an independent variable in the function, Mathcad would understand to vary it from 0 to basically infinity. If not, how do I define Lb to work like that. Thanks.   

First, let me put my flak jacket on under my flame retardant suit...   I still have my 5-1/4" disk of Mathcad 1.0 from 1987.  I LOVE Mathcad.  It has served me well my entire career.  For a long time I have been right there with the other Mathcad 15 zealots on this forum.  I had the opportunity for a face-to-face meeting with the Mathcad product managers and developers about 10 years ago in Latham, MA and I told them across the conference table, "Until Prime can provide the basic requirements of a high school 2D plot (Title, labels, legend, readable axis, etc.), Mathcad Prime will be nothing more than a toy!".   There was palpable silence in the room, I can tell you.  Reflecting back, I was seriously angry because I could see that my beloved Mathcad was coming to an end and the only replacement for it was inadequate.   Then I waited.  Ten years.  Nothing.   I teach a corporate Mathcad course to get our engineers to use Mathcad

The writing of some formulas in Mathcad differs from the writing of these formulas in textbooks in mathematics.My students have learned to partially correct this.One example is in the picture.Three questions.1. Guess how my students do it! What is written in the hidden area.2. Show other examples of such a mismatch of operators in Mathcad and textbooks.3. What needs to be changed - Mathcad or textbooks?

I installed 30-day trial software on a PC as a student at Arizona State University. Today, my PC crashed, and I bought a new PC. I need help getting the software on the new PC. Thanks.   Thanks, Ian Mylenbusch

The attached small system of ordinary differential equations cannot be solved, I need help. With the help of gdg solver I have had success so far. There must be a harmless error somewhere that I can't find.

I activated my license by clicking activate>configure product to use existing license> check Mathcad Prime 6.0.0.0>file:[license file path]> then they said it's done.   But then it's still saying that my program is an express version. and many functions are still locked. Is this what it's supposed to be for a student version? If not, how ca  I fix them? Thank you very much!

In MC14 I need letters from the German and non-Latin alphabet/character set (e.g. I want Sütterlin) to designate special objects/vectors. Specifically, I want to define vectors such as x(t) and e(t) this way. How can this font be implemented in MC14?Weekend greeting, Alfred Flaßhaar

I am looking to Demo MathCad for my company and I can not get past the trail edition authentication.PTC Mthcad 8.0.0.0Error Message: Auth FAILEDCan you check this out on your end and email me back with a solution?

Hi,I do problems that produce a square matrix in the s domain multiplied by a vector this is equal to a driver vector (circuit analysis).  I build a matrix with constants R,C,L and s as the complex frequency.  I invert this matrix and multiply by vector.  I use symbolics to generate the vector.  I then copy this result manually to a function and do my calculations in the s domain.   My problem is the copy and paste.  If I change something in the matrix (add a resistor) then it changes and I have to manually repeat the copy and paste. Is there a way to do this automatically.   I'm using 7.0 version now. Thanks for the helpAndy    

Hi all expertsHope you could do me a favor.How could i express the following series order with programing function?TksTon is the constant value and Toff(t) is variable by having different "duration" Ton, Ton+T1, Ton+T1+T2     

I am trying to plot a function in respect to a defined domain.  However, the function states that domain variable is undefined.  I do get discrete values when I remove the label for the function I do get a set of discrete values.  I feel like my issue is syntax, what am I doing wrong?    

Do you know the 1-st and 2-d ?s ? Can you calculate 3-d ? ?    

Hello,   Is it possible to do such calculation in Mathcad Prime?  

I am using Mathcad Prime 7 and I am having an issue where if I put US temperature units in the denominator of a fraction, it says the value must be a scalar or a matrix.  This does not happen with Kelvin or Rankine units.  I tried writing it different ways and that did not help either.  I tried selecting it directly from the units list as opposed to typing it in.  I tried converting the kelvin equivalent to Fahrenheit and still no luck.  Does anyone know what is going on or how to get this to work?        

At the end of April, I will be retiring after 40 years of Engineering.  I started using Mathcad with the DOS version in 1986.   Since then, it has been my go-to thinking tool.  I welcomed the Windows version in 1992.  I bit the bullet in 2013 with Prime 3 and committed to the transition from the old MathSoft versions.  It was not easy, but finally, I'm glad I did. It is one of the first programs that I start with the computer each morning.  I use it to document my calculations.  As a licensed PE, it is essential to my approval of Engineering designs.  As a part-time Professor, I use it in my lectures to derive or demonstrate example calculations.  I will continue to use it in my retirement. Now the real point of this post.  Out of curiosity, how many out there in this forum used the DOS version? When did you start using Mathcad and at what version?   What do you use it for?  Wouldn't it be great if PTC

Hello,  

i got free 30 day mathcad installed but it will not start.

Is there a section of the forum devoted to discussion of issues when converting MC15 worksheets to MCP 8.0? I have a few messages in converted files that have cryptic explanations that may make sense to the programmers of MCP 8 but not to me.    

I've been trying to renew my subscription/license for Mathcad Prime.  The support website seems to require that I communicate with a 'Renewal Advisor' or open a support case for renewal.  But none of that has gotten a response. I believe my license expires tomorrow and may be nonrenewable if I haven't.  What should I do?

Hello, my colleague installed the trial version of Mathcad Prime earlier. A few minutes later he received a license via email. What is this license for? Is this already for the paid version? --------------------------------------------- Translated from German to English using Google translate on 1st Feb 2023 at 15:12 hrs by vnamboodheri --------------------------------------------- Subject: Lizenz zugeschickt bekommen nach Installation der TestversionBody: Hallo,mein Kollege hat vorhin die Testversion von Mathcad Prime installiert. Einige Minuten später hat er per E-Mail eine Lizenz zugeschickt bekommen. Wofür ist diese Lizenz? Ist das schon für die kostenpflichtige Version?

I would like to ask how to copy data from one table to another table? In version 15, the CtrC and CtrlV command worked. Unfortunately, this feature does not work in MathCad prime 6.0.Thank you for answer. JV      

Find the total area of ΔABD+ΔEDC. Prime 8 sheet attached.

Hello All,I have 2 variables; one is pipe material and second one is temperature at 50/100°F increment.By selecting Material data from drop down list and temperature. It will throw allowable stress value. Is it possible to add interpolation formula if temperature value is other than what is available in the combo box.For example, for P11 material at 825°F, allowable stress value is 14200psi by using interpolation method.    

Hey all,  I am a structural engineer, specifically in the facade industry working with the exterior of buildings such as hospitals, labs, schools, high rise commercial and residential buildings. Our team has been using Mathcad 15 for 10+ years and sadly now moving over to Prime 8.0 and are at roadblock when it comes to integrating our mathcad calculations within Word in an efficient manner.  Our process with 15 involved creating a macro in Word so that you can paste special a bitmap and so our mathcad pages are formatted to fit exactly in our report template in word to fit the margins perfectly without distorting or blurring the text (if you try pasting something larger than the margins, scaling can begin to affect the visual/readability of the calcs).  Unfortunately, in Prime 8.0 this same copy paste function doesn't produce a paste as bitmap option but only paste as Formatted Text (RTF). You CAN paste the content of the sheet but not as a big object or p

I had matrices with mixed unit and NaNs in calculation and kept getting units errors. It was a surprise to me that NaN would grab the unit from the first matrix element. After realizing that I found a similar thread about same happening with 0 values. In that case it was solved with zero. Interestingly that doesn't show in the list of units and I couldn't find it in the help either. Anyway, for my purposes to solutions seems possible: either moving the unit row to bottom or to utilize zero with the NaN:There's no question here, but I do find the behaviour more than a little odd...