Mathcad

Here's a problem that I'd like to solve, using Mathcad, but I don't know where to start because I lack the proper domain knowledge. Is there anyone who can help me on the way?Thanks in advance for any help.

Please help me to program the numerical method shown in the pdf file !!

Hello everyone,What can I do to prevent this?in order to have a result, I had to consider the operators as variables.Thank you for all.F. M.

It is known that for a second-order reversible reactions 8 kinetic mechanisms are possible:1) A1 + A2 <-> P1 + P22) A1 + A2 <-> 2 P3) 2 A <-> P1 + P24) 2 A <-> 2 P5) A1 + A2 <-> P6) 2 A <-> P7) A <-> P1 + P2😎 A <-> 2 PHere, A - reagent B - product. I found a general solution for all the mechanisms that can be represented relatively simple formulaWhere r.o - the initial reaction rate, alpha and beta - parameters that are dependent on the rate constants of the forward and reverse reactions and the initial concentrations of the reactants.For each separate mechanism, these parameters have different values.Accordingly, I want to make changes in the second edition of the material with respect to the second-order reversible reactions.

New version of the problem 4.23 in Prime and with units:

To all,A really stupid question but one I need to askI have the equation D=S^b where is a non-integer (ie a real). Mathcad does not have a function to return S if D and b are known?ThanksRegardsJXB

Had some problems with calculating the concentration. Couldn't find the way to receive positive solution at the end. How it could be done?

EXAMPLE 11-6 CHAPTER ELEVEN, GUPTA                                                                                         developed by Carlos Day, PE, MBA, M.ASCETwo reservoirs are connected by a 200 ft-long cast iron pipeline. If the pipeline is to convey a discharge of 2 cfs at 60 , what is the size of the pipeline required?

Hi,I'd like to solve the attached equation for t, and I'm not sure how to do this in MathCAD.The end goal is to optimize time to go a certain distance by adjusting the gear ratio, so I need to solve this function for time first.

I am using the basic Mathcad 15 student version, date code 010 and I cannot seem to find allowed updates for this software from the Mathcad site. I am finding that I need to have a support agreement. What does this entail? Does it cost more money to get access to software updates for a basic Mathcad 15 program?The recent Microsoft Windows 10 upgrade has fouled up the ability to print graphics plots. I get a blue screen error: SYSTEM_EXCEPTION_SERVICE (win32kbase.sys) and the computer does a reset. Do Mathcad updates address this issue? jerrybayles2013@outlook.com

I am running Mathcad 15 student version on an Acer tabletop which was working fine before the computer was upgraded from windows 7 to windows 10. When I try to print a hardcopy or convert to adobe format, my computer shows a blue screen message, "Sorry, this program has encountered a problem and needs to restart your computer." Then my computer shuts down and restarts. This happens for any Mathcad work that contains a graph, either x-y plot, vector field plot, surface plot, etc. This is really a bad scenario. My online work has come to a stop on my website as a result. Any ideas??? HELP!! jerrybayles2013@outlook.com

For some time I have been unable to open Mathcad 3.1.  I twice requested help via the Academic Case Logger, and once via a customer support address, but I have heard nothing.  I am running Windows 8.1, 64byte.The problem is that all attempts to open 3.1 fail & generate the message: "This application requires ... .NetFramework,Version=v4.0.” Installing 4.0 and its 4.6 “replacement does not remove the message even when all existing copies are deleted.  Also  deleting and reinstalling 3.1 does not work.   Regedit.exe shows "Release REG-DWORD 0x0005c615 (378389 Finally, Prime, Viewable Support & PTC Diagnostic tools. ASP.NET 4.5 is ticked in Programs & Features. Does anyone know of a fix for this?

Hi,I always getting this error (picture below). I want to activate my Mathcad 15 but it wont work. My user account won't work the Licence Code is working but then comes the Login and I'm getting this error. What can I do to fix this?

Hallo,when I tried to install Mathcad 11 on a new Computer with Windows 8.1, everything went wrong, no chance. On my old notebook with Windows 7 the program worked correctly.Some days ago i upgraded the notebook from Win7 to Win10. And I had very much luck : mathcad 11 still works.Then I upgraded the computer from Win8.1 to Win10 an tried to install mathcad 11. The installation went complete through, but then allways came the message "incompatible programm". Also some tries with compatible modus from win95 to win7 did not help.I use mathcad 11 from now on on the old notebook. Better then nothing or the unloved Mathcad Prime.The solution with the "MSXML 4.0 SP2 Parser and SDK"  is too risky for me.From Germany, Gerd-Wilhelm

Dear all,I am trying to obtain the results for two coupling equations with "odesolve". But it seems that there is some problem in it which I cannot figure out. I will be appreciated if anyone can help me with this.

Hello folks,does anybody understand why this leastsquaresfit does not compute for this plain problem?Thanks in advanceRaikop.S.I'm using Mathcad 15 M045 on a Win 7 machine.

Hi,I am new to MathCAD and am looking for help.  Say I have a formula with two variables (a=b+c).  I want to calculate the value of "a" for 100 values of b.  So, I need 100 answers, one for each value of 'b." I am hoping to get an answer in the form a 100 rows x1 column table for values of "a." I greatly appreciate your help! Thank you.  

Hello,I have a question about how I can get multiple out puts from a single program made up of nested loops.Can I only return a single variable from a program or am I looking at this all wrong. I've attached a sample worksheet in Prime 3.1.I'm trying to understand how to get dout, rout, eout as well as a1 out of the program.Thanks,Ken

Hello!I have problem with MathCAD 15.0 which expired on 31st of December 2015.... I have a free version for academic students. How can I get new license .dat file?Thanks for help

http://dilbert.com/strip/2016-01-07Should have used Mathcad

1.       Long formulas : Sometimes there are formulas that exceed the width of the page and encroach into the next page. Is there a provision to insert multiline formulas?2.       Value substitution : Is there a provision (other than explicit keyword) to show substitution of values for each variable in a formula before showing final answer?3.       Explicit keyword : When explicit keyword is used, Mathcad shows metric values (SI) values multiplied by conversion factors even if the Unit system in Worksheet options is U.S.4.   Units for output variables in controls : Is there a way to assign units to the output variables in the script of the control itself? We have to redefine this output variable in the next line to assign it a unit. 6.       Selection retrieval in controls like listbox, checkbox etc. : Selection of a particular item in any controls (listbox,

In the attached Mathcad 15 document I have a for loop that defines certain cases. In this example the equality is satisfied for case 5 and case 6 but the loop is returning the last equality that is satisfied and I need to have it start the loop at case 1 and exit the loop after the first equality is satisfied. Any help is greatly appreciated. Thanks.

Old optic problems https://community.ptc.com/t5/PTC-Mathcad/What-is-not-correct-in-this-optic-problem/td-p/287167 https://community.ptc.com/t5/PTC-Mathcad/Parabola-Mirror-an-error/td-p/365093 https://community.ptc.com/t5/PTC-Mathcad/A-spherical-lens-where-is-a-focus/m-p/161402#433664   In the past century, many families have lenses with four boundaries between media "air-to-glass (or rather, plexiglas)", "air-to-liquid", "liquid glass" and "glass-to-air." They were placed in front of TV screens which at the time was little more than a postcard. Also fills the lens with distilled water, and better - glycerine whose refractive index higher.   Luc and all, wath is the best form for the front surface of this nostalgia-lens? The back surface is the plane. You can try to read information on the picture:   Price - 900 Ruble (now 12$). For rich men - Leningrad-TV with radio set (The girl was crying - she did not have enough money for this TV - 2000 Ruble, only for KVN-49):

When printing your Mathcad files to pdfs it seems to save the gridlines as a picture behind the text. This can easily double the size of your files (see annex: pdf with excel-component (also a picture) created with adobe PDF). It is therefore wise to save pdfs with the gridlines deactivated.