Mathcad

I want to find torque from standard power forumla p=2piNT/60 i tried like p=10kwn=50 rpmhow to find T Without making equation relating torque likeT=p*60/(2piN)

  Dear Mathcad Helper,As shown in the attached sheet, I am trying to solve a non-linear system with 2N+5 equations.  Among the 2N+5 equations, there are N+1 equations for one type of conditions, N+1 equation for another type of conditions and 3 individual separate equations.  The number of unknowns is 2N+5.  The unknowns are grouped in one (N+1)-vector, one N-vector and another 3 separate unknowns. Here are two questions:Is there a way to use correctly the range variable “i” in order to formulate in a compact manner the two types of conditions?  I have difficulties with the range variable “i”.Is the regrouping of unknowns within multiple separate arrays (i.e. B and η) legal within a Find function?  If not, what would be a nice solution?   Note:   So far, the only one way I have been able to solve (partially) the non-linear equation system is to defined N as a single integer value, to explicitly write all 2N+5 equations one by one, and

Microsoft Excel blamed for gene study errors - BBC News Researchers trying to raise awareness of the issue claim that the spreadsheet software automatically converts the names of certain genes into dates. ... The researchers claimed the problem is present in "approximately one-fifth of papers" that collated data in Excel documents. The trio, writing for the Melbourne-based academic institute Baker IDI, scanned 3,597 published scientific papers to conduct their study. They found 704 of those papers contained gene name errors created by Excel. Ewan Birney, director of the European Bioinformatics Institute, does not blame Excel and told the BBC: "What frustrates me is researchers are relying on Excel spreadsheets for clinical trials." The Excel gene renaming issue has been known among the scientific community for more than a decade, Birney added. He recommended that the program should only be considered for "lightweight scientific analysis". Sounds like a Mathcad opportunity to me ...

I have a file done on version 14 and I try opening it on version 15. I's grayed out unless I zoom in like 200%. Is there any button under some menu turned on and I don't know about it? Any help'd be appreciated.Thanks.

Hello,For a Mathcad calculation I am trying to make use of an IF statement in Mathcad 15. At the top of the sheet I ask the user of the sheet whether they want calculation "A" or "B" through a List Box Control. I have set name "A" to correspond with value "0", and name "B" to correspond with value "1". This value is then stored as follows:Then further down in the Mathcad sheet, I want to make an IF program that calculates a function in one of two ways, depending on the value of Storage. I tried to make it like this, but that did not work:Does any of you have tips for me on how to do this? I know that what I am currently doing makes no sense in Mathcad language, but I think it best illustrates my problem.Thanks in advance!Tim

My computer died and I am trying to re-install Mathcad 14 with Windows 10. I am getting many error messages (many for help files which seem to be where they are supposed to be but the install program cannot find). But the error I could not get past wasERR 1904.ModuleC:\Program Files(x86)\MathCad\MathCad14\mcformsr.ocx failed to register HRESULT-2147220473Any help would be appreciated.

I am trying to update a bunch of Mathcad 14 sheets to Prime 3.0, and I know Prime 3.0 does not have drop down menus like Mathcad 15 does. Is there any other function on Prime 3.0 that can serve the same function? I have attached a Mathcad sheet that I need to update to Prime 3.0 that has drop down menus, any help would be very much appreciated.Thanks,Matt

‌hi,im trying to make the jump from excel to prime for good.im trying to find how to create data from a table. In a very basic example if I create a 2 by 3 table with 1, 2 and 3 in the first two columns, how in mathcad do I calculate a third column that would return for example the multiplication of column 1 and 2 (appreciate this is actually column 0 and 1?in excel I would have typed =A1*B1 and dragged down through column C. Then I could do things like evaluating the sum of any column or row. Looking to see how this is acheived in mathCaD. If there is an existing tutorial on this id appreciate being pointed in the right direction.cheers,andy ps on my phone which is why this message looks like it's written by a child.

HiI am unable to calculate inverse of the matrix. The result is taking accuracy upto 3 decimal places. Even I tried to change decimal precision from "Math Formatting Option but the error become unchanged. "Please find given image and attached file for your reference.  for your reference:

Hi EveryonePlease help me to add row of any Matrix array. I am able to add individual but in my example case I am unable to do so. Please help in this regard.Find attached sheet for your reference.

Hi guys,I need to plot some raw data (experimental) and a function representing a model on the same set of axes in order to compare accuracy of the model relative to the experimental data. I am able to plot each one on separate axes without any problem, however when I try to add the vector containing the raw data to the y axis of a plot of the function, I get an error that states "the value must be real".Please advise on how to resolve this.

Using the root function, I have plotted a graph to show the I-V characteristic of a PV cell which is characterised by the implicit equation:I=Iph-Io [exp((q(V+IRs))/akT)-1]- (V+IRs)/RshVarying any of the parameters within the equation is expected to affect the I-V characteristic in a particular way. The plotted graphs takes on the expected shape but when I try to change the value of temperature, the plot shifts in an unexpected direction. Increasing temperature should lead to a decrease in open-circuit voltage and thus decrease in output power, but the model I've plotted suggests the opposite i.e. an increase in temperature leads to an increase in open circuit voltage which contravenes PV theory. Short circuit current (current when V=0) has a (slight) positive temperature coefficient while open circuit voltage (voltage when I=0) has a negative temperature coefficient.In contrast, when I vary other parameters like , Iph, Io , Rsh and Rs, the results are consistent with PV theory e.g. in

Hello All,I need some help with MathCAD Prime 3.1.  I have a solution on page 3 that I would like to reference on page 1.  Is there a way to do that?Please help!

Upgrade of Power and Power Factor

Hello everyone,I have the differential equation m∙x ̈+C∙x ̇+k∙x=0 and i know only the mass, do you know if there is a way to find the coefficients C and K? do you think this can be solved with odesolve if i declare some initial conditions?

Hello,I need to solve a system of simultaneous equations to find reference parameters for a PV model. I have entered the same set of equations in Mathcad 15 and Mathcad prime 3.0. As far as I can see the equations are exactly the same in both worksheets. The problem I'm having is that Mathcad 15 is not returning an answer although I get a solution in Mathcad prime 3.0. I would like to resolve the issue in Mathcad 15 as I need to plot graphs and do some further analyses using functionality that is available in Mathcad 15 but not prime. I also have no way of telling which algorithm Mathcad Prime  3.0 applied to return the solution so I can't even replicate that in Mathcad 15.I also noticed that if I change the guess values in prime and then change back to original guess values that returned a solution, sometimes mathcad prime 3.0 doesn't return a solution also, no idea why. (Note that for a valid solution 1<a<2 but when I include this constraint mathcad prime 3.0 won't return

Hello everyone !I'm new Mathcad user and do not have much practice with the tool. I would like to help.Can anyone help me solve this problem with Mathcad?To determine the frequency of oscillation of the pendulum harmonic figure next toData :m = 5 KgK1 = 50 N/mK2 = 130 N/mmR = 10 kgR = 1,2 m Applying the solution by the energy equation methodSimply:Deriving and operating:Replacing variables:Simply:The expression of the natural frequency is thus:Thanks!

Getting the following error message when trying to activate Mathcad for student at Mississippi State UniversitySetup could not properly detect the host id that is required. 

Hi. I'm using MathCAD Prime 3.1.How do I type in temperature units °C or °F ? I know you can click on "Units" on the "Math" tab. But I'm hoping for a simple and faster way to type it in.There is probably a very simple answer to this question, but an hour of banging my head against the desk has not helped me find it.So, if i am trying to write "50°C" I try typing: 50 Alt248 C =This gives "50°•C=0.87*C"Hmm..., so it thinks I want degrees and then Coulombs.I tried many things after this and finally found a rather long way:50 * " Alt248 C RightArow Delete LeftArrow LeftArrow Delete =This gives me the correct answer: "50°C=323.15K" Does anyone know of a faster way to type it in?

I am trying to solve a set of equations using Given and Find.  I wish to define some boundary conditions. Eg. I may wish to limit some answers to a range between 0 and  1 or limit some values to positive numbers numbers. I don't know how. Your help will be appreciated. File is attached.Basically I am using current and voltage data from relays at both ends of a line to find a fault location.If we limit all values to real and  M is between  0 and 1 The expected answer for U  is about  0.75 - 0.76.