Mathcad

Hi We had to upgrade to Prime 9 in the company after years of using Mathcad 15. It has not been a pleasant experience. In this case even a simple copy paste of an equation can cause the symbolic engine to crash/become unresponsive.  The yellow wheel spins endlessly. But the worst thing is when you quit the program and start MC again,  the symbolic engine becomes unresponsive - you have to physically restart the computer to clear whatever is causing the problem. I have tried using a Process Explorer on Windows to see if any background tasks were left running but to no avail. I get the feeling the problem most often starts after opening an existing file, trying to copy/modify an equation, then the calculation engine seems to start and stalls. If you open an existing file and toggle the calculation on/off before doing anything and get it to run then it seems to stay stable. But once you get that wheel and an "Unresponsive" message - restarting the computer seems the only op

Hello @Werner_E and crew,I've recently returned from a hiatus from the forum due to a busy schedule.I'm back with a new project and seek your guidance.I'm presenting the following scenario: I'm dealing with three rectangles or zones: A, B, and C. Each zone has a priority level. I have a list of points that I need to plot and require the program to determine the zone in which each falls. Should a point land on the boundary shared by two or three rectangles, the program should assign it to the zone with the highest priority. I've been working with Mathcad Prime 9 and have devised a solution, but I feel it's lacking because I haven't effectively incorporated the priority level. Could you recommend a more refined approach? Below are snapshots for easier reference. In the real world scenario, there will be many more zones and huge list of points.  

I am using Mathcad Release 15.0 and DatecodeM050Need to plot circular segment for four different cases. Need help setting up. see page 19Sheet one dose it individually, Sheet two wit T on name is my attempt to do this. See page 19.Here are the errors that I facedSee sheetDon't know how to upload my sheets.

A cylindrical cake (torte) has a chocolate icing. A knife is used to gradually cut out pieces of cake with the angle alpha and then flipped over and reinserted into the cake so that the icing is on the bottom. We keep doing that - after one circuit, the cuts can end up in pieces that have already been cut. Of course, the glaze moves back up, ...If e.g. alpha = Pi/2 (90°), then after two turns the glaze is completely on top again.Question: For which angle alpha is the glaze completely up again after a finite number of steps? Friendly puzzle greetings!

can anyone please help me with following: Worked well in Mathcad 15, Prime 9 doesn't like it... Best regards   

Hello Team,i have a problem with my mathcad license.I got a new laptop and my license is activated on my old laptop. Is there any chance to activate the license on my new laptop and deactivate the other host?Thanks for responding!Greedings,Lorenz Schinagl

I would like to define a variable as [η] but typing the square bracket initiates a matrix definition.

Hi, I am new to Mathcad and have just learned the feature of collapsible areas. Now, does anyone know how to reduce an unwanted area within a defined collapsible area? Understad the inserted area automatically increases to accommodate more content as writing. But when I remove some of the content, it won't shrink, leaving with a large unused space in the worksheet. I couldn't find anywhere one could manually drag that area to reduce its size. Does anyone come across the same problem? I'm using PTC Mathcad Prime 9.0.0. Regards,Frank

Hello, Expert guys in this community. Recently I have received help to solve the problems in using Mathcad Prime 9.0. Appreciate it. However, since I am just beginner level guy, I am having difficults with ODE solutions.(In addition, if you can solve those equations with AdamsBDF, then pleas add it) Please check attached worksheet files. Your help will be very much appreciated. Thanks!!

Has anybody seen this before: I consider it a bug. (Attached file is Prime 4) Luc

Hi,This should look like:   R3 is iterated from high value to low value...    

How to plot this graph and read the Values in Mathcad.

Hello,As I remember I started working with mathcad 2, many years ago.I'm still using Mathcad 15 since 2014.Now I got a new PC and a new Notebook.So I would need new licences.After some Mails I wrote to the academicsupport.The answer:"The Mathcad 15 has retired. We are not able to provide support for this".What can I do now? Is there any chance to run Mathcad 15 on my new computer?Greetings George

Hi,Why I cannot use Trace  Thickness in below plot?  

Recently, my SSD hard drive crashed and I lost all emails and software installed on my laptop, including the license file for my single-user MC 9.0.0.  I can't find a customer support email where I can request a replacement for said license file. Your advice is appreciated. Regards 

In another thread the execution speed of loops was mentioned as a side issue. That warranted some testing. It turns out that using if-construction inside the loop to deal with the first index instead of assigning that before the loop means that the loop takes almost twice as long ... if the loop just assigns a single value to a parameter. If the loop contents are even moderately complex, the effect of the if-construction will soon disappear into noise. Another raised question was the speed of the two forks in the if-construction. From this simple test that is minimal. The random variation is much higher than the difference, but on the average the result below seems to be about right. Another interesting thing, which doesn't show below, is the effect of multithreading. These examples are likely about as bad for multithreading as possible and that was also reflected in the results. The overhead from it was such that each execution time roughly quadrupled from the shown one

HelloI have the next formulae of power but I think  there is an mistake, Please somebody help mePot=(PxQ/360)/1.358P pressure in bar=225 barQ flow in l/min=78 l/min Pot=( (78*225)/360)/1.358=35,8kW Thanks

Hello Everyone.From : Need help with the trimZeroElements( ) program function with ORIGIN := 1 and ORIGIN := 0 ?Thanks in advance for the time and help.Best Regards.Loi.

I wrote a program and it works properly. The only problem is that it starts from the second value in the matrix not from the first value. How can I solve this problem?, The problem is in layer 1

HiI want to calculate/plot the deflection and the moment along a column (or a stand-up beam) subjected to a lateral point load. The column is pinned at the top (A) and fixed at the bottom (B), and the load P is acting at a distance a from the top. If somebody can bring some knowledge to this, I'll be very thankful    

For those who still use it, I encountered some strange behavior in the symbolic operations of mathcad 11.2a. In my decades of using mathcad, I find it hard to believe I hadn't seen this before. Using a unary negative sign in front of a vector evaluation seems to work as expected both numerically and symbolically. However, if the unary negative vector is added to another vector of the same size, the result is a nested array. I can't figure out what is going on. Am I just missing some expected behavior, or is this a bug? Lou

need to find q1 which is basically the values of qcza( known variable) qcza is the resistance in known depth [z]. q1 is equal to qcza when the depth is between 0.7D<z< 4D when D=0.4 and it has always to choose the minimum value until there is smaller value. the file is attached

I have z values and I want to specify an interval from the z values. I want to say that the values of layer 1 are the vales between 0.7d<z <4d when d = 0.4m .  

I need to find q1 which is basically the values of qcza( known variable) qcza is the resistance in known depth [z]. q1 is equal to qcza when the depth is between 0.7D<z< 4D when D=0.4 and it has always to choose the minimum value until there is smaller value

Not a question of mathcad but Mathcad can solve this. Find the Length DE. ABCD is rectangular. 5 areas are same sizes. AB=13 cm.