Mathcad

I spent 15 mins trying to understand how to do symbolic differentiation using the help files and some googling. I just wanted to check a correct differentiation, having spent money on Mathcad. Now I am sure it can do it, but it was not explicitly stated how to do diff, and all I could get was a repetition of the original function, which is no help at all. I went to wolfram alpha and got the anser in less than a minute. The writing is on the wall my friends....

Hello folks,I'm mystified. I'm trying to identify matching values in two different arrays (see attached file). Works fine when using match in a single equation, however fails when I let it run through a loop.It's probably me and I'd appreciate any help.RaikoP.S.MC15 on a win7, 64 bit machine.

Hello, this is my first post For two days I have trying to solve an ODE system. I suspect that the two equation are too complicated even to be calculated numerically. I managed to find a solution to one ODE using Odesolve built-in function.For information, look at the attached file.

HejI just downloaded Prime to try it out, and i like the layout and general feel a lot better than MathCad15, but I've run into a huge problem.I used the symbolic solve in 15 a lot, solving for a missing variable in an equation, where all others were defined with units and then using the normal '=' in the evaluation tab. Then 15 would combine the units and spit out a useable result, where I could change the units by writing the desired unit on the end. The picture below shows what i mean:Now trying to do the exact same thing in Prime 3.0 gives me the followingAny help would be appriciated!

I would like to display an array of data with polar dependence in polar (r,phi) coordinates. The values of the data shall be color-coded. A single data point shall be represented by an area filled with the respective color. The center of the area is r_i, phi_1, the limits of the area is given by r_i +/-delta_r , phi_i +/- delta_phi. This data plot is typical for radars (PPI = plan position indicator). Any idea whether this is possible with Mathcad? A example is enclosed.

How can we solve this problem in Mathcad?Help please.Data: The tank of water in which a piece of ice is placed. Water circulates. The outlet temperature from the tank is 5 °C and the input temperature is 22 °C.Objective: To describe mathematically the process of heat exchange in time between ice and water.

I have an issue in Mathcad that . is not recognized as decimal. See screenshot: All numbers to the right of . will be ignored. After restarting Mathcad problem seems resolved.

This worksheet gives the design principles of powerful electromagnet using Mathcad Prime 2.0. This is a water-cooled electromagnet using Hollow Copper Wire. The design may be used for other applications, like motors or transformers.The design combines both electrical and thermal analysis.

One picture from the article Interpolation, extrapolation, fittingorLies, damned lies, and statistics(http://twt.mpei.ac.ru/ochkov/students-eng.pdf)

I want to express additional y axis.it means that y axis exist two.Is it possible?

I want to find max value about omega when v is variable.I make solve block and I retrict each range.But I can't get omega max with variable v. In other words, I want to find max location about curves.

Hello. I tried to write implement a Gauss-Seidel Method, but got an error. I initialised all variables and wrote all the programming, which seems to be alright, but when I am trying to assign an element of previously initialised vector to a variable, it throws a "This value must be a vector" error. I have no idea why this is like that, I googled the manual about matrices and vectors and it says that Mathcad must recognise 3x1 matrices as column vectors.Moreover, the same code works in Mathcad 15 flawlessly (I have no possibility of using a code convertor included in Mathcad Prime).Any suggestions?

I'm trying to solve an equation & find 'natural frequency' i.e. Wn. I'm using 'angle criterion' formua:S = -0.1483 +/- 0.2143The only way I can find to enter the '+/-' symbol into a worksheet is to drag from; Help>Quicksheets>Extra Math Symbols. But when I attempt to enter the '0.2143' on the right hand side of the '+/-' it interprets the point (.) & puts the 2143 as a subscipt. Is what I'm trying to do possible in Mathcad? If so, how?

Hello all,I am trying to create a function that gives Vforward for a diode as a function of Iforward. Start with a log fit based on a series of data points taken from a datasheet which gives three coefficients to build the function.The function works fine if i keep eveything unitless, however I would very much prefer if the function takes current (A) and returns voltage (V)Any suggestions on how to modifiy the coefficients to achieve this?Thanks,David

Snell's law   Unable to play video. Please try again later.(view in My Videos)

After producing a Mathcad 15 plot on a Windows 8 computer, what is the best way to save a high-resolution (ideally 600 x 600) image of the plot on a PowerPoint 2007 slide?

I dont know what I do wrong:(Please look at this in xmcd

how can i get T_2_10k=2360 at the end as a result

SUBJECT: Mathcad version 15.0 (M010 [MC15_M010_20110622])Dear Community,I have a problem with the subject version and build of Mathcad.When pressing the keyboard button that should be the equal sign (=) I get the define variable sign (:=).Even when using the pop up (Evaluation Toolbar) and selecting the equals button on screen the same define variable symbol appears.Selecting the define variable icon does not make the equals sign appear.Any help would be much appreciated.Very best regards,Graeme Y

Welcome everybody, that is my first message here. I just want to know how to define other margins in Mathcad Prime 3.0 ? There are 3 types (narrow, wide and standard) but I need to change them somehow. Can I or it isn't possible?

Does anybody know if this error has been corrected in subsequent versions? Mathcad v14 does not calculate sin(180 deg) or cos(90 deg) as 0. There is a value out to ~16 decimal places, which would not normally be an issue, but I have a 0/0 division calculation that returns an error because of this. Using radians rather than degrees does not change the value calculated. I have created a kludge workaround, but I shouldn't have to. Is there a program fix for this? And does PTC know?

hi, I have a problem. I thought my solve block is not working properly.I posted two pictureI used "if"( red block) to find "a" in first picture.And then I used "a2 equation" to find "a" in second picture.the results are same between two pictures.So I can't be confidence about "my solve block" so Could you check why the results are same?<First picure><Second>

HiI need help because I can"t solve my task. Please look at this situations. I need solve it vary guickly. Thanks for help

HiI need help because I can"t solve my task. Please look at this situations. I need solve it very guickly. Thanks for help

There was a useful collection of worksheets available until recently with a wide selection of topics in engineering: Civil, Electrical, thermodynamics, physics and mathematics, but suddenly it is no longer available. Withdrawing a library with the perception of profit making is the short-term narrow mindness of salesman instead of fostering the use of Mathcad for the long term which is what Mathworks has been sucessfully doing with its well established product Matlab.