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?

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

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,  

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 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...

Hello,     Mathematica result:   Maple result:   Mathcad 11 result:   Mathcad 15 result:   Mathcad Prime 8 result:   Why does Mathcad Prime give such a result when calculating the determinant of that matrix? Is this some bug from prime? or? Mathcad Prime 8 file attached.

I have been using Mathcad for over 20 years, and currently have a support plan.  It's support renewal time again and I'm being told my perpetual license for Mathcad will expire if I do not renew my support plan. How does a perpetual license expire?       

Hello all, TLDR; excel cells in my worksheet resize themselves every time the documents is closed and opened. How to fix? ------------ I'm having a problem with some excel components I am trying to use in a worksheet I have setup.The general idea is I have set this up as a template where the input values can be easily updated, and then the user can quickly see if the desired values pass or fail.I wanted a quickly visibly colour check (red = fail, green = pass). To do this I passed the values into an excel component and used conditional formatting to change the colour of the cells depending on the value (ie if the check value that was passed in = "Pass" then the cells would be highlighted green, if it was = "Fail" then the cells would be highlight red). This works perfectly, and there's no built in functionality to change the colour of a math region based on the value of a result as far as I'm aware so this is my only option for doing this. However, my problem arises

Hello Everyone.Let ABC be a triangle with Incircle ( I ), and let ( I ) touch BC, CA, AB at A', B', C', respectively, and A'', B'', C'' are the midpoints of the sides BC, CA, AB, respectively.Prove : One of the distances A'A", B'B", C'C" is equal of the sum of the two others. ( C'C'' + A'A" = B'B'' )Thanks in advance for your time and help.Best Regards.Loi.

why do the functions that are capitalized not work such as LU, SVD, Cholesky etc. in Prime 4    

Hello All, I'm trying to extract data from 2 variables. Example, by selecting Material data from drop down list and temperature. It should throw allowable stress value.For P11 material at 1050degF, allowable stress value is 4200psi.  Can you please help me on this problem.  

HiI have the following relatively minor problem with Chart Component axis. If I let Mathcad to select axis values automatically, the maximum value doesn't show in the graph at all. If I set the maximum value of the y-axis to be 10% higher than the largest y-value, the axis values are no integers, but have decimal values as well. Is there some way to set axis values automatically, in a way that the maximum value would be shown in the graph, but also the numerical values in the y axis would be integers? In the attached sheet, there are three graphs. The first shows how the graph is shown automatically, in the second graph maximum value to y-axis is set, but as noted the y-axis values are not integers. The third graph shows how I would like the graph to look like, but I would hope that Mathcad would produce this kind of graph automatically without manual selections.