# Items tagged with 1616 Tagged Items Feed

### Error, (in f) unable to store .......................

May 27 2014
0 2

Hello Hello everybody
I have to solve the following differential equation numerically

 > restart:with(plots):
 > mb:=765 : mp:=587 : Ib:=76.3*10^3 : Ip:=7.3*10^3 : l:=0.92 : d:=10: F:=490: omega:=0.43 :
 > eq1:=(mp+mb)*diff(x(t),t\$2)+mp*(d*cos(theta(t))+l*cos(alpha(t)+theta(t)))*diff(theta(t),t\$2)+mp*l*cos(alpha(t)+theta(t))*diff(alpha(t),t\$2)+mp*(d*diff(theta(t),t)^2*sin(theta(t))+l*(diff(theta(t),t)+diff(alpha(t),t))^2*sin(alpha(t)+theta(t)))-F*sin(omega*t)=0;
 (1)
 > eq2:=(mp+mb)*diff(z(t),t\$2)-mp*d*(sin(theta(t)+alpha(t))+sin(theta(t)))*diff(theta(t),t\$2)-mp*l*sin(alpha(t)+theta(t))*diff(alpha(t),t\$2)+mp*(d*diff(theta(t),t)^2*cos(theta(t))+l*(diff(theta(t),t)+diff(alpha(t),t))^2*cos(alpha(t)+theta(t)))+9.81*(mp+mb)-F*sin(omega*t)=0;
 (2)
 > eq3:=mp*(d*cos(theta(t))+l*cos(alpha(t)+theta(t)))*diff(x(t),t\$2)-mp*(l*sin(theta(t)+alpha(t))+d*sin(theta(t)))*diff(z(t),t\$2)+(Ip+Ib+mp*(d^2+l^2)+2*mp*d*l*cos(alpha(t)))*diff(theta(t),t\$2)+[Ip+mp*l^2+mp*d*l*cos(alpha(t))]*diff(alpha(t),t\$2)-mp*sin(alpha(t))*(l*d*diff(alpha(t),t)^2-l*d*(diff(alpha(t),t)+diff(theta(t),t))^2)+mp*9.81*l*sin(alpha(t)+theta(t))+mp*9.81*d*sin(theta(t))=0;
 (3)
 > eq4:=mp*l*cos(alpha(t)+theta(t))*diff(x(t),t\$2)-mp*l*sin(alpha(t)+theta(t))*diff(z(t),t\$2)+(Ip+mp*l^2+mp*d*l*cos(alpha(t)))*diff(theta(t),t\$2)+(Ip+mp*l^2)*diff(alpha(t),t\$2)-mp*9.81*l*sin(alpha(t)+theta(t))+l*d*mp*diff(theta(t),t\$1)^2*sin(alpha(t))=0;
 (4)
 > CI:= x(0)=0,z(0)=0,theta(0)=0,alpha(0)=0,D(x)(0)=0,D(alpha)(0)=0,D(z)(0)=0,D(theta)(0)=0;
 (5)
 > solution:=dsolve([eq1,eq2,eq3,eq4, CI],numeric);
 Error, (in f) unable to store '[0.]/(0.17571268341557e16+[-0.25659510610770e15])' when datatype=float[8]

I don't know why it says : Error, (in f) unable to store '[0.]/(0.17571268341557e16+[-0.25659510610770e15])' when datatype=float[8]

Help pleaase!

thank you !!!

### [16.0] Strange bug at startup...

February 07 2013
0 1

I have a very strange bug with Maple 16. When I try to start it, Maple loads its shell and starts to consume 100% CPU (maple.exe, not mserver.exe). If I try to calculate something, it throws something like "waiting for server connection". In 3 to 10 minutes Maple suddenly stops doing this and then works normally until I reboot Windows. What's this? Maple 16.0, Windows XP SP3.

PS. I do not have such bugs on my home PC with Windows XP SP2.

### Cursor Problems in 16.02...

December 25 2012
0 3

I just updated to 16.02, and now the (writing) cursor has horrible problems, especially in text groups. Basically, it is erratic or unmoveable.

In a text group, if I move a cursor down by pressing <enter>, it will not move up with the arrow keys, or it disappears and then appears in previous groups. or a new cursor appears in the line above, but the old cursor remains, or ...

In an execution group, it does a lot of the same things, but not quite as erratic.

### 16.03 update still a possibility...

December 15 2012
0 0

Based on past releases, after Dec 31 any hope of a 16.03 update becomes very very slim.

You see, any last issued updates (back to Maple 11) have all happened before the turn of the new year.  And should we make it into the new year without one last update then we can almost be certain that Maplesofts focus is all on the next major release, Maple 17.

There is always hope, that a few more loose ends can be tied up before the next major release, however...

### maple 16 mathematica 9...

December 03 2012
1 14

Mathematica 9 was just released Nov 28 which caused me, of course, to have a look to see what wolfram has done in way of comparing itself to maple.

Perhaps we can discuss, compare, debunk, clarify some of their claims or perhaps dismiss the results altogether

Here is one speed comparison chart I came across.  Is it relavent?  It shows Maple 16 as the worst performer.

### Maple 16 Classic Worksheet Crashes A Lot!...

November 14 2012
3 8

Hi,

Recently, I upgraded from Maple 13 to Maple 16.  I have been using Maple for 20 years --- Maple V Release 2 (1992) through Maple 16 (2012), and I participated in beta testing Maple V Release 4, which developed what we now call the Classic Interface.  The Classic Interface is amazing --- it was better than Mathematica in 1994 and it is still better than Maple's Standard Interface.  The Standard Interface is missing features that were...

### Maple 16 freezes in Windows 8...

October 28 2012
1 2

I installed the Maple 16 in Windows 8 and it works in command line mode. But for worksheet mode, it freezes once you open the Maple and can only be closed in task manager. Any quick way to solve this problem? thanks

October 06 2012
0 1

I have a HOMEUSE licence including Maple 15, MapleSim 5, with Driveline and Tyre Libraries. Does anyone know when the intergated Maple 16 / MapleSim 6 will be release for upgrade?

### Problems to install maple 16 on windows 8...

September 27 2012
1 4

Hello,

I'm trying to install Maple 16 on my new computer with Windows 8. But every time I try to install it, a message popup "Installer user interface Mode not supported

I have looked at google, but can't find any answer there solve my question. Anyone there can help me?

I have tryed to make a silent install but it dosen't work..

Hope anyone can help me :)

### Maple16 starting issue...

September 18 2012
0 1

Hi. i just installed Maple 16 on my computer, but i doesnt work. Everytime i try to open it, it just loads forever. i Tried to install maple 16 32 and 64 bit, without any luck. I have tried to run it as administrator, and in combability mode, still nothing.

I have windows 7 home premium 64 bit.

### How do I turn off Maple's "smart" highlighting?...

August 27 2012
1 1

I'm using Maple 16 for OS X (on Lion). The way Maple handles highlighting is very strange; if I want to highlight (and copy or delete) part of an expression, or maybe something nested within a command, it frequently highlights things I don't want it to and never put my cursor near. I expect it's trying to be smart and predict what I want to select, but quite often it makes it impossible for me to do what I actually need to, causing even more hassle. Usually if I want to delete...

### Maple 16 mathematical orb / knot...

August 26 2012
1 2

Someone asked how to create this in Maple.

### Trouble with arrows=line option in DEplot...

August 11 2012 Maple 16
1 6

There is a flaw (bug) in the DEplot routine.  If you load the plottools package before using DEplot with the arrows=line option, the DEplot routine tries to use the line definition from the plottools package.  A worksheet illustrating this problem is below.

### PNG export using "plotsetup(png,...)" has an orie...

July 25 2012 Maple 16
2 4

When using "plotsetup(png,...)" the third rotational angle is ignored.  Attached are a worksheet and the corresponding three plots that demonstrate this bug.

### Missing finance.dll in Maple16 (64bit)...

July 07 2012
1 2

... is finance.dll missing in Maple16 (64 bit), as it was in Maple15 (64 bit), so you have to install the 32 bit version instead?

Is it possible to move the finance.dll-file from Maple16(32-bit) to Maple16(64-bit)?

Jestrup

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