So, i'm using Maple 13 in my school, and our homework was to make two procedures which could calculate something.

I'm interested in making a procedure which can calculate out the angles of my triangle with the law of cosines, and this is how my procedure looks so far:

findA := proc (a, b, c)

local solA;

solA := arccos((b^2+c^2-a^2)/(2*b+2*c));

return evalf(solA);

end proc

findA(67, 50, 34)

After many calculations tried to run eval(exp). Was  in shock :( Big table used. Is there smth like forget(all) to forget all functions. After forget(exp) memory of course lowers enought.

CTmodel-1.mw

Can anybody spot the problem in the second solve() in the attached file?  I am using the same approach that I did for the first solve(), but Maple is returning any empty list. 

Thanks!

On November 22, Joe Riel posted an implicit differentiation problem that caught my attention. It took the manipulations typically learned in an Advanced Calculus course one step further, but the devices learned in such a course could readily be applied. Joe's solution was expressed in terms of exterior...

I've set up part of my procedure to calculate the values of i from 1 to 15 using for loops.  I only need the values from 1 to 15, but a later part of my procedure if failing because it says it cannot evaluate the value for i=16.  How do I tell Maple that i>=16 doesn't matter/do nothing for i>= 16?

Is it possible to display on a same graph the error of type I and type II error given n, alpha and beta?

PowerTest

applet.zip

Gracias

Hey,

I've got a nondifferentiable bounded multivariable function and I'd like to find a good approxiation of it's minumum and maximum.
Basicly, I'd like to automaticly be able to return the maximum and minimum of the height of the 3D-plot i have. That would just be perfect.
However, I can't find anything that does anything like this.....

 It is the mathematica code for bifurcation diagram of the model that i am working with now. is there anybody who can translate it into maple code? or does anyone can help me with making a bifurcation diagram for such a ODE system in maple??

Thanks in advance

Noticed that after simplify memory remains in some internal caches. How to free it after simplification done?

Could i manually reset status bar (i.e. memory and time values)? restart; doesn't help.

I was wondering if anyone knew of a procedure or patch for Newton's method with two variables. I checked maple help and there only seemed to be Newton's method for one variable.

It's for root finding when you have two functions, each with one or two variables; it involves a jacobian matrix.

I'm running Maple 13 btw.

I recently had a journal article accepted but was told that several of the graphs had to be redone because the axes were not thick enough to reproduce. Unfortunately, Maple has no way to edit the axes for thickness, so I had to export the differential equations to Matlab and integrate them there to get publication quality graphs. I have been having more trouble every year with the quality of Maple's graphics output, and this really puts a cherry on it. I would be pleased as punch if Maple could include a graph editor that would let us customize a graph to make it presentable to publishers. Maple does so many things so well it is a shame to leave this on the back burner.

In next procedure i calculated 1st derivative of H in y=0 via series approximation. And i see that some terms of series are missed. If i would raise second parameter to cnt+20 for FuncToSeries in GetLimitsArray it becomes better. But why it's not OK with even cnt+8? series_test.mw

I have the numerical solution of Phi(r,t) which is a numerical solution of a pde..

I want to find the following energy integral at fixed time say t=10 ,

Energy = int(a*r^2*Phi(r,10)^2 + 2*b*r*Phi(r,10)^3,r=0..infinity)... I could not find help in maple.. I guess I had to do the following

1. select the numerical solution dependent only on r at t=10 slice..

2.Use numerical methods to evaluate the integral..

Just try simplify :

to_zero.mw