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Hello All,

Can I get maple to give me a hint as to what test for convergence to use with infinite series?

 

Thanks!

hi

i have to calculate a extreme value for a box that is open on one side that should have a volume of 32.

V = x * y*z

For the surface ob the box-sides i used this function:

O = 2xz + xy + 2yz

my idea was to solve this in maple using lagrange because i ve a side condition

with(RealDomain):
L:=(x,y,lambda)->x*y + 2*x*z * 2*y*z +lambda*(x*y*z-32);
solve({diff(L(x,y,lambda),x)=0, diff(L(x,y,lambda),y)=0, diff(L(x,y,lambda),lambda)=0});
evalf(%);

it gives me for my values x = 32/x*y; y = y; z =z

Hello! I would like to know if there is a way that Maple finds the equation on its own. I have a table of x values and y values and after plotting them I would like to find a trend line by least square.

I want to create a list of the first 100 prime numbers.  I remember vaguely the use of seq and type but I can find it in the differents forums.  Could someone state it again for me.  thanks!

Hi,

I have a matrix

 

A:=<<1,-3,2>|<-2,6,-4>|<2,-1,5>|<3,1,8>|<-1,-7,-4>>;

 

how do I find a basis of im(A)?

Thanks

 

Chen

Hello everybody,

I am using the GF package from Maple to solve an equation with elements of a given galois field. It looks like that:

field := GF(7, 1):

eq1 := x = y^2:
eq2 := x^2 = y^4:
equationToUse := eq1:

isSolving := false:
use field in  
    isSolving := is(eval(equationToUse, [x=field:-random(), y=field:-random()]));
end use:

if isSolving then
    print(`Equation solved`);
end if:
 

The Maple Manual says to use a parametric plot to graph a circle.  I've been fiddling with the syntax  but can't seem to get it right.  I want to plot

x^2 - 2x + y^2 = 0,           which can be written as

(x-1)^2 + y^2 = 1

Can someone please give me the PLOT command to plot this circle?

Allan

I wrote a procedure shrinkTime:=proc(n::posint); The procedure only works with a positive integers and I need to plot this function. However, whenever I goto plot it; plot(shrinkTime(n)); I get this error: " Error, invalid input: shrinkTime expects its 1st argument, n, to be of type posint, but received posint" How can I specifically instruct maple to only plot at points where x is a positive integer?

How do i get 20th iteration for following fixed pt problem

x = exp(-x/2)

Please help.

How do i get 20th iteration for following fixed pt problem

x = exp(-x/2)

Please help.

How to find 20th iteration for following fixed point problem.

x = exp(-x/2)

Please help.

with(Statistics):

X := ["A"=2,"B"=3,"C"=5,"D"=6];

BarChart(X);

 

This works just fine, but if I try to execute

 

ColumnGraph(X);

 

I get plotting error, non-numeric vertex definition.  These two functions are in the same help file, so why aren't they accepting the same syntax?

Occassionally when I simplify maple puts a negative sign out front.  How do I get maple to put it back in the equation?

Something like (3+4i)/(-3+7i)  When I simplify maple shows   -  (3+4i) / (-7i+3) 

I'm really not sure why maple would factor out a (-1).   In any case how do I reverse it?

hi

i am doing a multiple integal integration from one of my tutorial sheet

 

Given D is the triangular region whose vertices are (0, 0), (Pi,0), (Pi,Pi), find

Int(Int(x*cos(x+y),x),y);

 

then I worked out something like