Mathcad

This is a quiz for age 12. How to solve this by using Mathcad?

Hello   There seems to be a calculation error in my fred (marked with red box).   When I do hand calculation / Excel-calculation the value is ca. 1.68. It is correct that the units drop out of the function as I hand calculated.   Could someone figure out the problem?   *here are again the inputs  rho = 1.2 [kg/m3]  ze = 7.64 [m]  zg = 380 [m]  alpha.r = 0.19 [-]  qp.0 = 0.9 [kN/m2] or ca. 91.74 [kgm/s2/m2]  f0 = 1.64 [Hz] or 1.64 [1/s]   Best regards,   Samuli Turunen

Is it possible to set Page Size larger than 11" x 17"?  My goal is to move the dashed page lines off the screen.  If I have a plotter that prints ARCH E (36" x 48") I should be able to tell Mathcad.  thanks,russ

HI,  Does anyone have access to the structural engineering worksheets? I am after a Eurocode Wind load and moment frame example? These are not in the civil sheets and I can not find any to purchase on the site. Any guidance will be appreciated.  Thank you,  Casper 

Does anyone know if it is possible to create a unit for optical power loss in optical fiber communications having the units of dB/km?  Thanks in advance for any assistance.

Friends, I need a function that returns a vector containing n natural random non-repeating numbers (Lotto game)

Hi everyone, As a chemical engineering student, I am trying to solve a pipeloop problem.  I stated all the necessary balances (see below):And the other necessary formulas:which I want to solve for Fh(v),Fo(v) and Fc(v) from v=0 until v=VL. now I've set up this solve block:  which in theory seems solvable, as there are 5 unknowns and 5 equations. Is this the correct way to solve this problem? With kind regards, Tim                    

MathCad 14 factored the function sinx(x). It is known from other investigations that this function has only real zeros. If you now look for the zeros of each factor (the terms are in parentheses), then MathCad calculates complex zeros that cannot be simplified. Where is the saw stuck here 😉 .Kind regards, Alfred Flasshaar

Hello all, I am having some issues with Global Definitions.  I am trying to define the following: kJ = 1000JWhen I do this, Mathcad (7.0) accepts the input, but the "kJ" stays black.  It doesn't turn blue like other definitions I have used in the past.  I am using a wrapper for REFPROP, and the author has the same definition in his worksheet.  If I copy that into my worksheet, it works fine.  But creating my own definition from scratch doesn't seem to function properly.  Thus, when I make function calls for fluid properties in kJ/kg, i.e. enthalpy, the units are not correct.  See the screenshot below. What's the difference between these two?  How do I make my global definition like the one above?

There is one more calculation to be performed based on the interperolated values.  However the value of appears to change after the calculation of .  I do not understand why?  Any suggestions.   Thanks.    

I'm just trying to make a vector from a function so that I can export the valuesHowever MathCad Prim 8.0 give the error "This value must be a scalar or a matrix". Why???Needless to say, not having the ability to just select all values from an array and copying and pasting, like it was possible in MathCad 15 is really, really annoying

The development of a famous polynomial p(x) of degree 45 has already been discussed here. Now I searched further and found Vieta's approach to the ingenious determination of the zeros. His approach, identical to p(x), is p(x) = 2*sin(45*arcsin(x/2)). Mathcad 14 fully develops this. But I fail to get the usual polynomial structure to be able to compare it with the classical default. What am I doing wrong in attached file? Kind regards at Christmas time, Alfred Flasshaar

Hello,As shown in image I am trying to calculate temperature change. I think units are compatible but mathcad does not allow calculation. What is my mistake, I could not find. Could you help?  

I have a german installation of Prime 7. As I work for an international company, we use english in our documents. When I input text, the spell check always switches to german. So I have to manually format every text to english. How can I force MathCad to spell check in english as  default?

I implemented a solve block, which worked with Prime6. Now with Prime7 it does not find a solution anymore. I reworked the problem using a simpler function to make it easier to understand and even this easy equation is not solved. Unluckily I have a new computer for some weeks, with a completely new installation and only have Prime7 installed.Both versions of the solve block do not work. I know, that the equation could be solved easier, I just used the solve block for demonstration (see attached SolveBlock). In my application the function is much more complex and it worked with Prime6 (SolveBlock_original).

How to get determinant values for matrix in the terms unit vectors along the x-axis, y-axis and z-axis respectively i.e i,j,k

I am trying to set up a worksheet something like this (full size image attached)I have a number of issues which I don't think can be solved, and which mean that Mathcad is not the right tool for this particular project.  However, I am posting this to see if anybody can persuade me otherwise.Firstly, the two combo boxes (each with the same 200+ rows) cannot be populated through code, only by pasting values or entering values manually, one by one.  The source data for the combo boxes comes from two columns of an Excel workbook.  For the time being I am only working with the first combo box.  I have had help with this aspect but in my opinion Mathcad should have a way of populating a combo box via code.The idea is that when a different acid is selected from the combo box, the plot and/or chart component are automatically updated.  This is working as far as the plots are concerned (i.e. both the native plot and the chart component automatically reflect the changed

I would like to create a series of nested If statements to calculate kp_figure for Multiple values of Θ (120, 110. 100, 90, 80, 70, 60, and 50), with a secondary If statement for each value of Θ as shown in the calculation for Θ =120.   Any assistance would be appreciated.

Edit: Possibly solved? That was quick... See bottom. How can I use a relative path when including reference worksheets? The documentation suggests it is possible: "By default the include region displays the absolute path to the referenced worksheet. You can edit the path and make it relative." I am collaborating with colleagues on a number of worksheets that include references to other worksheets. These are documents that 3 of us access and edit. We are currently using OneDrive, but the issue would remain even if all documents were emailed around. The "Include: path" changes, but all worksheets can exist in a single parent folder, or even a grandparent folder (which should work with a proper 'relative setup') I have tried various ways like: ../  or ./ or / or //https://learn.microsoft.com/en-us/dotnet/standard/io/file-path-formats I have found some ancient* threads discussing and confirming this ability as far back as 2004, but nothing new, or recent

This month’s challenge is around field goals in American football. Create a Mathcad worksheet where you calculate the following angles from a given line of scrimmage for making a field goal: The horizontal angle between the left and right field goal posts (18.5 feet apart). The vertical angle between the horizontal bar of the goal post and the upper height of the goal post arms. How can you show how those angles change as a function of the line of scrimmage?   Factors to take into consideration: Assume the football is kicked from one of the hash marks (offset from the center of the field) and 7 yards behind the line of scrimmage. The goal post is located at the back of the end zone. The horizontal bar is 10 feet above the ground and extend another 35 feet. For this exercise, the football must pass through the box defined by the goal post. American football uses yards, feet, and even inches, so you might want to take advantage of units in Mathcad. Bonus: Can your worksheet hand

I have a text file with comma delimited numerical data.  I read it in to the "ld" table and then have a program to parse through and build a matrix from the data (data file attached).  My questions: 1) Can I replace the "11" in my for statement with something like "length of (ld)" so my code works when I change the number of rows of data? 2) Is there a way to build the Ypos matrix without using the intermediary Yp matrix?  I know Ypos is only defined inside the program - but is there a way to make it "global" or such? 3) Is it possible to populate 2 different matrices with 1 program?  So my code would create both a Yp and a second matrix?  If my code creates a Ypos and Yneg how would I pass both of them out?  thanks,relayman357  

If I copy several rows of code from a program, and paste them in I get an extra "indention" set of double bars.  I want the pasted code to have the same "level" as the code in which I'm pasting it.

Hi, I was doing some calculations using Prime 7 and Excel through macros. Basically, the program passes some values from Excel to Mathcad to calculate and the results are printed back to Excel. It worked fine. I recently formatted my laptop and installed Prime 8. I am waiting for the license so, in the meantime, I am using the 30-days trial with full functionality. I tried to use the same Prime-Excel program but it shows the following error when I run the macro: "User-defined type not defined". I have the Ptc.MathcadPrime.Automation.tlb file to VBA, as shown in the attached image. Is there something I am missing? Maybe this functionality is restricted to users with license? Thanks!

Hello,I am trying to insert a bitmap image into the header of MathCAD 15, its size is about 124kB. Could someone assist me with it ? I get an error saying the tool is unable to read the file.Thanks!

Illustrative file attached.