Mathcad

Hello everyone,Today's problem involves loss of ship stability caused by lifting a weight on a crane which has an effect on the ship's centre of gravity height.I think where I am struggling may be a misuse of Mathcad but I'm not sure.Below is the problem:Here is some of the explanatory equations to use:And this is where I have got to.I've obviously got the correct change in centre of gravity from the keel, however, I am .1 of a degree out with the angle of heel caused by swinging the crane out by 30 degrees.I have assumed that the lateral distance from the crane to the mass is the opposite of a right triangle of the radius of the crane's jib as the radius forms the hypotenuse of this triangle.Not sure I have got the trig functions correct with regards finding the angle of heel?Also I've not used the lift height i.e. the weight is lifted 10m but I don't think this is relevant? I say this as the virtual centre of gravity of the weight is at the suspension point which is 20m?Help as alway

Develop a program code, which calculates and draws a 3D NURBS (Non-uniform b-spline) surface writing (burning, engraving) your name’s initial letter on surface. The inside or outside Offset Feature may be on a 3D (may be extrude, sweep, revolved, spline).This is similar to writing a label by laser on an object surface. First, you must define the control points of the 3D surface. Then modify the weights to deform and shape the surface. Students should write their own program file and, use different sizes and positions

Hi,can we solve differential equation symbolically?regards,Amr

I submitted a post with two question concerning Fourier Transforms in Mathcad 15 a couple of hours ago.  Now it is gone????Where did it go????Do I get notified by email if there is a response to my post?

Hi,I'm putting together a worksheet for beam loads and sizing. I can plot the bending moment of the applied loads on the beam however, I am having difficulty getting an automatic command to output the maximum bending moment from the function. I want to use the maximum bending moment value as a variable and input further along my worksheet.Is there a reason why the maximise function does not work? Is there another method that I can use here?I'm using Mathcad Prime 3.0 and have attached Mathcad and PDF copies of the file.

Hello,Firstly, this is a feature of Mathcad I am exploring for the first time.I am looking at a problem whereby I have a series of coordinates which I have used to plot a graph.I now need to evaluate the graph in two ways. One I need to find what the largest value on the y value is and then the point at which the curve crosses the x axis (for the second time).I can do this by eye and say that y is larges at ~0.52 and the curve crosses the x axis at ~84 degrees.Is there a way to evaluate this mathematically to get a more accurate approximation?Also can anyone tell me how I can increase the accuracy of the scales i.e. the points on the x axis of interest are currently 81 then 90. How can I show more points i.e. increments of 1 degree on the x axis?Thanks,Andy.

Just purchased the student version, and the licence is not being reconized. I have done the license acquisition, and this licence file was emailed to me. Any ideas of what im doing wrong?

Hello,maybe somebody has the same unpleasant and disturbing problem while using MCP 4:When often switching from Mathcad to another program, the blue area of the menue bar gets thicker and thicker.I wonder why software developers make such a crap.

I am trying to install Prime 3.1 on my new laptop. I already have a license for 3.1 but it is on my old computer. I currently only have the 30 day free trial of 4.0 on my new laptop but that will expire soon and I need to use mathcad files on after that expiration date. I am having difficulty downloading 3.1 on my new laptop.Also, I tried to activate my 3.1 license on the 4.0 version, but it ended up just locking half of the features. I need availability to all the features. I really do not care if it is the 3.1 version or 4.0 version. Please help.

Can anyone help me how to remove the drift (long duration) from the cyclic data as below? If you have a function for this one, it will be greatly appreciated.Regards

Hi everyone,Here is my next challenge. The physical/mathematical problem behind it is to correct an artificially generated spectrum compatible accelerogramm for earthquake structural simulation. I need to smooth (fit) the data in order to remove the "drifting" that inherently exists when the data are integrated to obtain a velocity, but the initial velocity have to be zero.So I want to use the sophisticated smoothing capabilities of MathCAD, for example loess() or kgltt() but I also would like to be able to impose some condition, like y(0)=0. I see no way, so I decided to just fit an appropriate polynomial (without the constant term), and that works of course, but is not exactly what I wanted (loess, for example, makes many polynomials, so piecewise quadratic approximation).Attached you find a small "playground" for testing what I mean.Thanks a lot for any hints.Claudio

Hello everyone!I have a question, how can I solve a system of equation, which is consists of three equation (two of them are Differential and other one is not) using ODEsolve or there is some other way?So I had a system of two differential equation and everything worked just fine, but then I need to add one more equation and this equation is not differential. So I don't know are the ODESOLVE able to solve this kind of systems or not. It keeps telling me, that I have too few initial conditions. File 9 is a file where only 2 equation are solved.Thanks for your help

Dear all,I'm just wondering whether there is any chance how to create comparison of several variables in one line using function if or something different.Please see a screenshot what I need to compare. I marked up one line as example. I'd like to make it in one line or make it work for all table because for instance the third line has too many variables.Thank you for your help in advance.Kind regards,Jan

So I am going to air my frustrations - When is PTC going to give two sihts about Mathcad?  They just came out with 4.0 and it sucks as bad as it has since 1.0 - why don't they just listen to the people and fix it?  Yes they improved Prime but converting from 15 is still horrible.  It dam near doubles in size and, oh yea, still can't convert it's own graphs.Hey PTC -this is bullsiht!  It will be nearly impossible to get my company to pay another dime until you get this right.Am I alone in this? 

HiI'm a novice with Mathcad. Attached is a Mathcad file Ive been working on. If you scroll to the end of the file you will notice that there is ratio called Mp/Mn. I want to program this in such a way that "If Mp/Mn is greater than or equal to 0.3 then the result should be OK. If it is less than 0.3 the result should be reported as "FAIL". How do I have program this. Kindly advice.RegardsSriprakash

Hello,i have built a code for determining the eigenvalues for a vibration problem and plotted them. But there is something that i couldn't understand. There is no a value for eigenvalue-1 for s specific beta interval. What happens there? are roots complex or sth else?thanks for your help.

I am new to PTC / Mathcad V15.0 but am trying to use this great tool effeciently.  For my job I have solved a problem which involves 8 equations and 8 unknowns.  I have successfully arranged my equations to arrive at the correct solve block answers using the command Find as shown below:The output naturally provides numeric (in this case...complex) solutions.  Here is where I need help.  With the results I need to conduct additional calculations but it does not seem that Mathcad does not recognize the value of each variable...such as K11 = 0.21675 + 0.19125i.   Must I define these variables manually after the solve block or is there a command which  will link the output to its respective variable.  I plan on using the 8Eqnt/8Ukn solve block to solve for different givens...however, this currently means I need to manually set the correct result for each of the 8 solved variables such as K11:= 0.21675 + 0.19125i.I appreciate any recommendations.Thank

I am new to PTC / Mathcad V15.0 but am trying to use this great tool effeciently.  For my job I have solved a problem which involves 8 equations and 8 unknowns.  I have successfully arranged my equations to arrive at the correct solve block answers using the command Find as shown below:The output naturally provides numeric (in this case...complex) solutions.  Here is where I need help.  With the results I need to conduct additional calculations but it does not seem that Mathcad does not recognize the value of each variable...such as K11 = 0.21675 + 0.19125i.   Must I define these variables manually after the solve block or is there a command which  will link the output to its respective variable.  I plan on using the 8Eqnt/8Ukn solve block to solve for different givens...however, this currently means I need to manually set the correct result for each of the 8 solved variables such as K11:= 0.21675 + 0.19125i.I appreciate any recommendations.Thank

HiAttached is a Mathcad 4 file. Also attached is a pdf which shows the desired units (Page 4 of 😎 radius of relative stiffness. However, Mathcad doesn't seem to be in agreement. Kindly let me know where my assumption is wrong.Sriprakash

Tree bobs on the string - the right base point goes to right Video Link : 7744 The last frameMore Re: One task with 3 bobs - Forces searching

I need to find a way to use a vlookup function to find a value that is equal to, or greater than, a value.  I have a value that dictates the use of a certain size of a device.  The device size can be oversized but not undersized.  So if I have a determined value of say 5.5, device A is good for 5 and device B is good for 6, then I need to return data for device B from the evaluation.

Hey guys, I am attempting to solve a complex problem with rkfixed.  At the bottom of my sheet is where you will find the function.  I have my ODE defined with the variable "D", and when I run rkfixed it returns "this function cannot be used here".  I have been researching for hours with no luck to find the reason.  Can someone please help?

How do I reset my toolbar positions? when I undock my laptop my toolbars are no longer on screen how do I get them back?

Hello Everyone.I am new to PTC / Mathcad V15.0 but am trying to use this great tool effeciently.  For my job I have solved a problem which involves 8 equations and 8 unknowns.  I have successfully arranged my equations to arrive at the correct solve block answers using the command Find as shown below:The output naturally provides numeric (in this case...complex) solutions.  Here is where I need help.  With the results I need to conduct additional calculations but it does not seem that Mathcad does not recognize the value of each variable...such as K11 = 0.21675 + 0.19125i.   Must I define these variables manually after the solve block or is there a command which  will link the output to its respective variable.  I plan on using the 8Eqnt/8Ukn solve block to solve for different givens...however, this currently means I need to manually set the correct result for each of the 8 solved variables such as K11:= 0.21675 + 0.19125i.I appreciate any recomm