Mathcad

Does anyone know what algorithm is used for the various FFTs in MATHCAD 15?Thanks,Reg

Hi,As I have this equality: I see that I received 2 different answers out of the solve block for V2 and IE, though both systems of eq are the same...V2 and IE should not be the same for both cases?    

Hello Everyone.From : To : So the question is : "solve x , y ?"Thanks in advance for your time and help.Best Regards.Loi

 Subject to: Minimum lies in a range [0;2*π] Write it for MathCad15 please.Thank you

HiAs I could read here Ext-Packs I can remember the very useful Extentions packs for Mathcad version 15 but are these also for Prime 10.0 or Prime 6.0 available? And are these Ext Packs the same for Prime?THanks

Hi - in the attached Prime 9 worksheet my last line (solving for the only unknown, L subscript 4) hangs. The variable L subscript 4 is the only unknown in the equation.  Is there a better way to solve for it than what I'm doing here?  thanks,russ  

how can I fix this:if (a )is less than zero the answer should alwyas be zero  

In vibration theory there is a problem to define position and velocity of a rod which loaded with distributed bending force q(x). If to assume that this force acts by sine law the vibration equation will be written as follows: Where v(t,x) – function of vertical position of the rod points, E – elasticity modulus, J – second area moment, m – mass per unit length, ω – circular frequency of acting force.Note that J and E assumed to constant.If to substitute now v(t,x)=y(x)·sin(ω·t) one can obtain an ordinary differential equation which describes a form of oscillation:Solve this equation assuming:q=10 kgf/mm;Titanium alloy E=100 GPa;Second area moment J=1440 mm4. Which is equal to rectangle with sides 10 mm and 12 mm, and force acts along longer side;Circular freq. ω=0.1 1/s;Length l=100 mm;Rigid constraint on left bound y(0)=0, y’(0)=0;Bending force on the left bound ;Bending moment on the left bound ;

Apart from the counter-intuitive behaviour of the match() function (and I suppose this holds also for the lookup functions) as shown here: Due to the definition of z and A, none of the results should change when the value of TOL is changed. However: It seems like the value of TOL does 'influence the precision of the comparison' but in an unclear, unpredictable way. I would suggest that ONLY the 'fuzzy' descriptor/modifier "near" uses the value of TOL. Then "eq" should be implemented as 'equals exactly' and likewise for "leq", "lt", "gt", "geq" and "not". Then with "range" the comparison should be to the borders set by z exactly, after specifying whether or not the border values are in range or not. Then the description of "near" should not use the word, 'closest', because "near" is supposed to use the implicit range from (1-TOL)*z to (1+TOL)*z, where some values may be found closer to z than others. I suggest to add an option "nearest" to find the value(s) in A that is/are truely 'cl

Hello,I need to install Mathcad on a machine, I managed to find a program for installation, there is a doubt, do I need a specific license for it?

I am writing to you to request clarification on an issue related to the definition and evaluation of variables in Mathcad. I am using PTC Mathcad Express Prime version 10.0.0.0.   In the PTC documentation, it is mentioned that "Mathcad only recognizes variable definitions that are above or to the left of the variable evaluation. Otherwise, an error is returned." However, in my practice, I have observed the opposite: Mathcad recognizes the variable definition that is below and to the right of the variable evaluation, and if it does not, an error occurs.    Additionally, I am experiencing a problem with unit labeling. When I try to label "a" as a drive, the label does not change when I select a new one from the list of labels.   I thank you in advance for your attention to these concerns and I look forward to your response.   Eduardo Huesca Hernandez    Translated by the Community Moderation using Google Translate      Me dirijo a ustedes

Hi!I'm trying to run Mathcad Prime 9.0 through API. I downloaded the C# example solution and trying to open the application by pressing the button "Start Mathcad Prime". https://support.ptc.com/help/mathcad/r9.0/en/index.html#page/PTC_Mathcad_Help/API/example-2_ms_dev_studio.html# However, I get the following error: Problem to connect Mathcad Prime: Retrieving the COM class factory for component with CLSID {A00E8B95-D415-433F-A04E-D298A54A7BB7} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)). I've been googling and using AI for few hours now to fix the problem, but nothing seems to solve the issue. Is there anyone here that could help? Thank you so much!

How to remove collapsible area line while generating PDF in MATHCAD Prime

I've looked through some other topics, and it seems like there is currently no way to hide keywords and modifiers, is this correct? These types of calculations must always look cluttered?Also, when using explicit,ALL with any non-exact result, you always seem to get a full display of precision. Using Round(x,x) seems to work okay, but this only adds to the clutter of an already "explicit,ALL" cluttered calculation. Using float,x is not much better, if not worse.  It seems like the only way to make a clean looking calculation is to double down calculations within areas that can be hidden. But these is a problem with this also... sigh...Not sure why the order of the values is backwards when you remove the "explicit,ALL" part. It doesn't seem to matter how you write the equation, 16in comes first, then 4ft. This would have been a decent workaround, if not for the annoying order in which the substitution is displayed. Can this be fixed?   I honestly

Hello Everyone.From : To : So the question is : "solve x , y ?"Thanks in advance for your time and help.Best Regards.Loi

In my attached Mathcad 15 worksheet, I am trying to compute an IFFT of an analytic function of frequency for a know time function.  To display the desired bandwidth, I have to use a large number of points.  Time points = 2^m and frequency point = 2^(m-1) where m=24.  The final plot will not plot due to the maximum plot points unless the step size is at least 70.  The way I have reduced the plot points means there are only 2 points between the first time point and the next time point at step x Dt.  I tried to do an interpolation from the original vectors to fewer time points; it ran forever.  Maybe user error on the linterp function.  Attached is the xmcd file.  Auto calculation is turned off.  The calculation time on my old PC is about 15 seconds.1.  Can linterp not interpolate to fewer points?2.  Is there a better alternative to what I have done?Thanks much.

How to solve this problem 

I tried to find a solution this but so far no results. This works in Smath as is, but now I'm trying to transform all my formulas to new software, Mathcad does not seem to like how it is calculated.Can you tell me what I should do to make it work?  lamda2*L2 can be calculated separatedly, but not within the formula.. 

I often have large arrays created by reading big .csv files. When I want to navigate through these arrays, it is often difficult to precisely locate the spot I want due to the behavior of dragging that inset dark box within the large light grey one. I've searched the forums and other sources for a keyboard navigation technique for Prime, but cannot find one. Is there a way to incrementally navigate through an array...like we used to be able to easily do in "Mathsoft" Mathcad? Maybe there is some Windows adjustment that will work, but I've already turned-down the sensitivity of my pointer and selected "Enhance pointer precision"...

Maybe I'm doing something wrong, but I can't seem to figure it out. There are several posts that show examples of explicit working quite well, but for some reason I can't get it to work.Here is what I'm trying to replicate:And this is what I get: Also, is there any way to hide the whole "explicit,a,b,c" part? Thanks in advance. 

Hi - how do I tell Mathcad Prime to include an initial condition when symbolically integrating?  I want the initial value of my function to be 0.1 at time t=0.  See attached. thank you,russ

I wish to map calculation results in a 2D matrix onto the surface of a hemisphere to produce a "heart map" showing the magnitide (colour) and orientation of the maxima and minima in the dataset. The matrix data are the result of calculation of stresses on a plane for a grid that has been incremented by 15 degrees in the polar and azimuthal directions. I can generate a hemisphere with the appropriate 15 degree grid but do not know how to map my data to this grid. Can it be done? Any assistance would be appreciated.CheersRoss 

I'm trying to find the effective stress, I wrote a program in mathcad however the result was zero always I think the error occurs because of the depth . Since I need to use the previous depth of each stress and not the depth in the same point. Can anyone please help me?Also I need to find the midden value but not sure how to find that in excel  in mathcad   

I have activated a Mathcad 9.0.0.0 license on my account but now have a new PC with the same Mac address but I cannot activate the license because I no longer have my product code. I need help to be able to use Mathcad 9.0.0.0 Prime again.-------------------------------------------------------Translated the text from German to English using google translate.Subject- Mathcad 9.0.0.0 Prime Lizenz auf neuem PC einrichtenBody - Ich habe auf meinem Account eine Mathcad 9.0.0.0 Lizenz aktiviert aber habe jetzt einen neuen PC mit gleicher Mac-Adresse kann aber die Lizenz nicht aktivieren weil ich meinen Product code nicht mehr habe. benötige Hilfe um Mathcad 9.0.0.0 Prime wieder nutzen zu können.- By community moderation team-------------------------------------------------------

Solve it for Mathcad 15