Mathcad

Hi,   I want to write a code where for some vector [25 15 23 20 .. n ] i want to find if the ratios of the adjacent values exceed 1.2 of each other. The output result would be like "Yes" or "No". how do i go about doing that?   For example: for vector [15 25 20], because 25/15>1.2, I want the answer as "Yes". But I would also want the same answer "Yes" if it was [25 15 20] because in this case also for the adjacent values 25/15>1.2.   Thanks.   Edit1: added "ratios of the" Edit2: added example

Hello all,   I am wondering if someone can share a Mathcad file involving an extrapolation, any comments or suggestions are also welcomed.    Thank you.

What latest version of excel is ok for mathcad 15_M045?

Why is it that whenever i type 1000lb equals to i get 0.102 (s^2/m)*kip, while i want the output as 1000lb=1kip. Why is it that I can't get a simplified answer in kip or something other than a fundamental unit including acceleration.   Thank you.

Hi everyone! This can be a very simple question for those of you that are expert in signal processing. Suppose I have two time series y1(i) and y2(i) corresponding to two sensors, affected with noise and measurements errors. Known of course is also x(i), the times of the measurements. It can be assumed that the sampling frequency fs is constant, so that x(i)=(1/fs)*i. Is there a simple way to estimate mathematically / statistically the time delay (if one exists) between the two measures? For example the "human eye" could see that one signal, if shifted a certain Delta-x, pretty well correlates the other one.   Is it possible, even if the two signals have different numerical magnitudes (say, the second signal is not only delayed but also weaker and maybe with a different constant term) Somehow I believe this should be possible using the correl(y1,y2) function but some quick tests that I made do not seem to work. Thanks a lot in advance! Best regards Claudio

I am using MCP 3.0 and I cannot insert an image.  If I use IMAGE block and browse to my picture nothing happens.  If I open the picture in another program and copy and paste into MCP it works but then the document will not save.  I get an error "File type not supported" and a log file is generated.  I have tried jpg. bmp, png, tiff and nothing works. I also tried it on another computer, 1 with MCP 3.0  and 1 with MCP2.0 and still the same.  Any help is greatly appreciated..

Hi,   I found that the user "ManuelOliveros-" had created hundreds of worksheets, however I can't download anyone of them.    https://community.ptc.com/t5/forums/recentpostspage/post-type/message/user-id/81422/page/44   Help?

New and old from Po Shen Loh

I need to evaluate MathCAD in its Elements form, but the only way to load up the application is with a 30 day trial of Prime. How can I manually deactivate that Prime license? I tried accessing my online account, but - as a trial user - I can't access the License portion of my online account. 

What revisions are required for Mathcad to provide a value for Fr for each value of Bb in the attached worksheet? Any assistance would be appreciated.

Hello all, Need help with the root function which i keep getting the error 'This function cannot be used here'. (mathcad 15)   Thank you. 

Please see attached worksheet (I'm using Prime 3.0).   I would like "fd()" to return only positive real results.   Is my problem perhaps that in function "fd()" that it cannot know whether or not the solved variable (x in this case) is real, imaginary or negative etc.?  And if this is the case is there a more appropriate or accepted way to filter out the unwanted results?   Thank you.

Hello everyone,   I have a set of experimental data and a differential equation with two coefficients inside it. I am trying to find these two coefficients using regression and by solving the equation. Thanks in advance.  

Hi, something strange with summation operator I must get 2x2 matrix

Hi, I want to get vectors of the same length. Is it possible to do this Thanks in advance

Hi,    I'm trying to solve the Differential equation of motion using the comand rkfixed, however I'm not getting.   The correct form to write the equation is in the captura in the attachment, but the Mathcad not solves it, just solve if the mass divide all terms (stiffiness and damper)   Can anyone help me please?  

I'm a Mathcad newbie and consider myself fortunate to have been able to generate a crude surface plot of a function of two variables. This plot may be spotlighted as part of a History Channel series episode that will begin shooting in about three weeks. As such I want it to appear as "professional"-looking as possible. I have several questions:[1] I want to "stretch" the plot in the y direction [range 0 to 4,000 feet] but have been stymied thus far. [Note: In a true-scale drawing of the plot, the y-direction side of the rectangle would be an order of magnitude longer than its x-direction counterpart. That’s obviously not achievable, but it would be nice to make the plot as narrow as possible.] PTC Mathcad Help, under Component Structure, states that “The plot area…displays the plot of the X and Y expressions defined in the Inputs area. You can use the component block handles to resize the chart area in the x, y, or both directions.” Problem is, I can’t find those handles.[2] Is it poss

Hello! I hope you all are having a wonderful evening/day/afternoon/night!   I am new to this forum so I'm not sure if I should post this here - I couldn't seem to find a better place to put this. I use MathCAD for Engineers without Borders work, and I have been using it for 3 years now. I have been updating and using 3 files primarily for our calculations. After half a year using these files, they suddenly have stopped doing math. Attached is a picture of one of the files.   As you can see, the text boxes are fine, but the actual mathboxes are opaque and do not do any math functions. When I try to type more math functions, it still does not work. When I open it in MathCAD express 6.0.0, I get the same result.  When my co-lead opens it in MathCAD Prime 3.1 or Express 6.0.0, she runs into the same problems.   When I open an entirely new file in MathCAD Prime 3.1, it works perfectly as MathCAD should be.   I have attached the files for your convenience.   Th

I tried finding that but it said value must be scalar or matrix. I need help

I can no longer select a part of an equation in Mathcad Prime 5 or 6..   With the cursor in an equation, pressing the space bar no longer selects an item in the equation. I used to be able to press the spacebar and select a variable. Repeated pressing of the spacebar extended the part of the equation being selected. Now pressing the spacebar with the cursor in an equation does nothing.   Pressing the left or right arrow key moves the cursor within the equation but pressing shift while using the arrow key does nothing. It used to select a portion of the equation.   Pressing shift while using the mouse to drag the cursor used to select a portion of the equation. Now it selects the whole equation.   I thought maybe my Mathcad 5.0 file was corrupted so I downloaded the trial version of Mathcad Prime 6.0 and have the same problem. BTW the trial version of 6.0 is useless. There is a big watermark diagonally across the page. It is so dark that in the confusion I can't see

I can no longer select a part of an equation.   With the cursor in an equation, pressing the space bar no longer selects an item in the equation. I used to be able to press the spacebar and select a variable. Repeated pressing of the spacebar extended the part of the equation being selected. Now pressing the spacebar with the cursor in an equation does nothing.   Pressing the left or right arrow key moves the cursor within the equation but pressing shift while using the arrow key does nothing. It used to select a portion of the equation.   Pressing shift while using the mouse to drag the cursor used to select a portion of the equation. Now it selects the whole equation.   I thought maybe my Mathcad file was corrupted so I downloaded the trial version of Mathcad Prime 6.0 and have the same problem. BTW the trial version of 6.0 is useless. There is a big watermark diagonally across the page. It is so dark that in the confusion I can't see to enter enough into the

Mathcad Help, under Component Structure, states that “The plot area…displays the plot of the X and Y expressions defined in the Inputs area. You can use the component block handles to resize the chart area in the x, y, or both directions.” I want to "stretch" a surface plot in the y direction only- -leaving the x and z dimensions of the plot as they are now- -but cannot access the abovementioned “handles” to do this.  

I am trying to get the individuals units from the sheet and I cant seem to get it working could someone help me out