## To contain Momentum in the Kinetic Energy express...

I am currently working on kinetics area. We have for Kinetic Energy KE = 1/2*m*v^2 and for momentum P= m*v. I need to check for the presence of 'm*v' term in the kinetic Energy expression and want to express Kinetic energy in terms of momentum. That is KE= 1/2*m*v^2 should be expressed as 1/2*P*v after checking for the presence of m*v. The momentum expression should be contained in the formula foe Kinetic energy. Anyone please help me on this Siva

## fsolve...

I am trying to numerically solve the equation (1+j/365)^365=1.1 using command: fsolve((1+j/365)^365=1.1,j); or fsolve((1+j/365)^365=1.1,j,0...1); both cause Maple a lot of problems...cycling. I lost patience. Anyone know how to get the answer?

## output from dsolve...

I have used the dsolve feature and solved a normal ODE. The problem ariss from evaluating that result for different y(x) values. I get the y(x) attached to some message regarding a table. The ODE was y'=-400t*y(t). After solving the diff eq, I evaluated y(t) at t=0 and I got a nice answer, which I defined as t. A few lines later I attempted to use t in a simple subtraction step but got 19.7table[....]... where 19.7 was the correct answer but the subsequent phrase table referred to earlier y(t) evaluation. So, even though t gives a nice answer it can't be used for any calculations. How do I rectify this problem?

## String vibration HELP!...

Hi, Again I'm hearing voices! I have beat myself to death and have found the end of the internet in my search for help on the solutions to String deflection problems: I need to find u(x,t) for the following: Initial velocity = 0, a small k = 0.01, L=1 c^2 = 1 Problem 1 k*(sin(2*Pi*x) ; #Problem 2 k*(sin(Pi*x)-1/3*sin(Pi*3*x)); The second problem is a homework problem. The first is a problem I want to do to see how this works, but I can't grasp the idea. The problems are from the 9th Ed of Kreyszig AEM. (Great for proofs, short on examples)

## Help Understanding Maple Program...

I'm working through an example program. It seems to be working correctly. However, I would like to know why this procedure produces a Maplet ? Any other insight into this procedure you can provide would also be helpful. thanks, View 285_dicegame.mw on MapleNet or Download 285_dicegame.mw
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## tickmarks...

A scientific journal, which will remain nameless, requires that tickmarks on the plots face IN rather than OUT. I don't see how to change this in Maple... I can't blame them, it seems like a triviality. So is there a way? And failing that, anyone have any ideas. I'm thinking I'll load the gifs into gimp and fix them that way, but that seems awfully roundabout. Thanks.

## Remove a post...

A while ago I posted to a forum which was not the one I intended to post to. I reposted but my original post remains in the MAPLE TA forum. Is there any way to remove one's own post from a forum?

## form a matrix from two vectors...

Sorry in advance, for the low-level question. What Maple command allows you to form an (n,2) matrix from two (n,1) column vectors? thanks a lot

## CodeGeneration...

Hello, I desire a different version of CodeGeneration[Fortran], and at the recommendation of the Maple 10 help system, copied the files in 'C:\Program Files\Maple 10\samples\CodeGeneration\Fortran77' and started making some very minor changes (i.e., changing .ne. to /=). However, I have not been able to work out how to load this modified file into Maple. The help system points to CodeGeneration:-LanguageDefinition:-Add(langname, moddef) function. The key is, I guess, is to load the modified file into moddef. I do not see how I can do this. Cheers Dave

## Showing a 2d list...

I enter this at the command prompt >sss := [[1, 2], [2, 4], [3, 6], [4, 8], [5, 10]] Then I enter this at the command prompt >sss; and I get the output [[1, 2], [2, 4], [3, 6], [4, 8], [5, 10]] as expected. Then I enter this MakeData := proc () local i; global ggg; for i to 5 do ggg[i, 1] := i; ggg[i, 2] := 2*i end do end proc Then I run the proceedure MakeData and I test various values of ggg[i,j] to verify that ggg[i,j] = sss[i,j] But when I type ggg at the command prompt, the output just returns ggg, it doesn't give me the whole display, as it does when I type sss as the command prompt. Is there any way to get that output when just using ggg ?

## Delcaring global and local variables inside a proc...

After reading pg. 201 in the INTRODUCTORY PROGRAMMING GUIDE, I got the impression that one could declare both local and global variables within a proceedure. This parses proc1 := proc () local i; end proc; So does this proc1 := proc () global j; end proc; But not this proc1:=proc() local i: global j: end proc; Is it possible to declare both global and local variables from inside a procedure?

## continued fractions...

How can enter a command in MAPLE to calculate a partial sum of an already exhibited continued fraction?