i do not want maple to round off some terms , for example 1.7777777777 which is rounded off 1.7777777778 . i do not want maple to round off the result,what should i do ?

Hi,

I'm trying to solve the following system of differential equations:

x''=(-c/m)*((x')^2+(y')^2)^1/2)*x'

y''=(-c/m)*((x')^2+(y')^2)^1/2)*y'

I need to solve them numerically as I've found out that trying to solve them analytically is impossible, and I really don't know how to do this in maple, I have initial conditions:

x(0)=0, y(0)=0, y'(0)=V0 sin theta, x'(0)= V0 cos theta.

Any help would be great.

Thanks

http://en.wikipedia.org/wiki/Twisted_cubic

1.

How to find S^3 : S^2*T : S*T^2 : T^3

2.

How to find X*Z-Y^2, Y*W-Z^2, X*W - Y*Z

Let a,b and c be the three roots of the equation :2012x^3+2013x+2014=0.Find (a+b)^3+(b+c)^3+(c+a)^3?

hello..

i have promblem, how i convert string to matrix and then, seprate row in matrix..

for example
a:=["0101101","0000101","0001001"]
 i want convert to matrix like..

Real application running a very long time in elimination step

z1 := Diff(x1(t),t) = x2(t);

z2 := Diff(x2(t),t) = x3(t);

z3 := Diff(x3(t),t) = x4(t);

z4 := Diff(x4(t),t) = -1*(1.0000*x4(t)-.5109*x3(t)-0.595e-1*x2(t)+3.1086*10^(-15)*(Diff(u(t), t, t, t))-(Diff(u(t), t, t))+.5109*(Diff(u(t), t))+0.595e-1*u(t));

with(Involutive):

with(OreModules):

Alg := DefineOreAlgebra(diff=[D,t], polynom=[t], comm=[a1,a2,a3,u]):

DD := evalm([[D, -1, 0, 0, 0],[0, D, -1, 0, 0],[0, 0, D, -1, 0],[0, -0.0595, -0.5109, D+1, (3.1086*10^(-15))*D^3-D^2+0.5109*D+0.0595]]);

DDtilde := Involution(DD,Alg);

ApplyMatrix(DDtilde, [lambda1(t),lambda2(t),lambda3(t),lambda4(t)],Alg)=evalm([[miu1(t)],[miu2(t)],[miu3(t)],[miu4(t)],[miu(t)]]);

E := Elimination(DDtilde, [lambda1,lambda2,lambda3,lambda4],[miu1,miu2,miu3,miu4,miu],Alg);

Hello..
 i have big problem, i dont know, how to add 0 in front.
firstly, i convert decimal to binary and  then i convert to string

but, how i add some 0 in front??
for exmple below..

list:=["1000","1","1110"]

i want to look like 7 bit
["0001000","0000001","0001110"]

i dont know how to count all digit, and how to add some 0 to front , and also have 7 bit?

okay so i have to write a maple function that decides wheter a line given by a vector that spans it intersects a triangle with given vertices. 

an example of what it should look it is 

ISC([[0,0],[10,10],[10,10]],[2,1]) returns true

ISC([[0,0],[10,10],[10,0]],[-2,1]) returns false

thanks in advance.  i'm just having severe problems with writing functions and what not as you can tell. anyway, Thanks!!

okay so the question i have to answer is "write a maple function that computes the area of a triangle in the plane from the coordinates of the vertices"  

ive gotten this far 

with(geometry);

triangle(ABC, [point(A, 0, 0), point(B, 2, 0), point(C, 1, 3)]);

area(ABC);    3

but how can i write so when you type say AA([[0,0],[10,10],[10,0]])  it returns  50?  (AA being the function name)

Thanks in advance to whoever helps.

I have asked this question before (2008) but no one answered. I just repeated my error and am still flummoxedflummoxed.

In early versions of Maple (Maple 1 Maple 3) one could halt a computation on the Mac by holding down the command key and the period; Maple would respond quickly. Now one can try that or click on the red hand in the tool bar and interrupt the computation but it doen not necessarily stop.

I inserted a print command in a procedure so that I culd...

Can anybody tell me what error is in the following function?

F:= ([[a,b], [c,d], [e,f]]) -> (1/2) abs((c-a)(f-b)-(e-a)(d-b));

Thank you!

Reply With Quote

Good afternoon sir,

I would like to the usage and purpose of the maple tool with(MTM)

I request your kind support in this regard.

Good morning sir.

This is just to get awareness that can we able to generate the Greshgorin circles for a given square matrix A

by using direct maple commands in linear algebra package.

I request your kind support in this regard.