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SimonFrisendal1-Visitor
1-Visitor
August 30, 2011
Question

Mathcad graphical error

  • August 30, 2011
  • 4 replies
  • 18394 views

Hello. I have no idea whether or not this is the right place to ask about Mathcad errors.

I bough a new laptop a week ago, with the following specs:
Intel Core i5 2410M / 2.3 GHz (Hyperthreading)

4 gb RAM DDR 3

Intel HD Graphics 3000 Dynamic Video Memory Technology

I ran my schools Mathcad 15 installation, and everything went fine. I already had MSXML 4.0, visual C++ 2008 and so on.

But, Mathcad doesn't function properly. The graphs are fine, it calculates correctly.. But some of the equations i type into Mathcad partly disappear as i deselect them. If i select them with the touchpad (mouse), it shows the equation correctly. An example of this is attached as a picture. The two equations are exactly the same and the only difference is that one is selected and one is not.

I have tried reinstalling Mathcad, but the problem still occurs.

4 replies

M
mzeftel1-Visitor
1-Visitor
August 30, 2011

You're probably missing the symbol font, which is used by Mathcad to display operators. It is a Windows font, and you should be able to reinstall it from your Windows installation directory.

That's the most likely cause of what you are seeing or not seeing.

Mona

V
VladimirN24-Ruby III
24-Ruby III
August 31, 2011

Hello!

What Windows OS are you using?

P.S. And also, could you attach a Mathcad file?

S
SimonFrisendal1-VisitorAuthor
1-Visitor
August 31, 2011

Win 7 SP1.

I will try to reinstall the symbol font, but i don't think that it is that which is causing problems as i can type equations into MS office Word 2010 without any errors.

And all the symbols do show up, but only when selected.

I have tried provoking the same error onto my old laptop, but it shows the equations correctly.

Thank you both for your help so far.

Simon.

V
VladimirN24-Ruby III
24-Ruby III
August 31, 2011

I opened the file and this is how the expression is displayed in Mathcad 15 M010 (I'm using Windows Vista 32-bit):

Font.jpg

And as you can see the font is "Times New Roman". Check up in options ("Cotrol Panel" - "Programs" - "Programs and Features" - "Windows Features") whether the tick for Microsoft.Net Framework is active?

P.S. Also see my response here: http://communities.ptc.com/message/167147#167147

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SimonFrisendal1-VisitorAuthor
1-Visitor
September 6, 2011

Hello again.

I tried contacting PTC but it didn't help at all. I have tried to install mathcad 14 and the problem was still present. I also tried installing Mathcad 15 on another new laptop(5 days old) and it showed the exact same problem. My laptop is as you might know only two weeks old. So is this a case of mathcad being incompatible with newer installations of win 7?

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Mischa1-Visitor
1-Visitor
September 6, 2011

Hi,

I am using Mathcad 15 on a recent Windows 7 installation, fully up to date. I have no problems at all. Special characters are not in the font selected (like times new roman). They reside in a special font Mathcad uses for symbols. That file can be missing or maybe corrupted. Since the problems rise on other computers too, it must be an installtion related problem. Simple equations should show though, is that the case?. Like a:=5 and b:=7 and c:=a+b. As soon as you use a special character like the root sign or greek letters, things probably can go wrong if the symbols font is not okay.

Very strange though, I have looked at your screen capture and I see the 'standard' text disappears.

M
Mischa1-Visitor
1-Visitor
September 6, 2011

Since I am probably in my previous post, I reply to my own post. I have checked the various style variations (Format -> Equation). The parts missing from your equation do not belong to the same style. So I guess the font is not the problem. Can you check the various styles? For example change them to a different font to test what is happening.

D
doranje1-Visitor
1-Visitor
December 12, 2011

Hi Simon,

Did you find a solution for your problem? Because I've got the same problem on my new laptop..

All goes well untill I use a greek symbol, deselecting it makes all the symbols vanish except for the greek symbol..

Does it have anything to do with Nvidia graphics cards? I read something about adding a registry value but that didnt solve anything.

Anyone have a sollution?

Excuse me for not opening a new thread

S
SimonFrisendal1-VisitorAuthor
1-Visitor
December 12, 2011

Hello Dennis. My simple, yet sad solution, was to install a new version of Win7. One that i had lying around. This fixed my problem and i haven't been able to find the real cause of the problem nor a solution to it.

D
doranje1-Visitor
1-Visitor
December 16, 2011

Hi Simon,

Nice quick reply, thnx. What version of windows were you running? Win7 ultimate? Was it a proper one or was it an illegal one?

Thnx

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