I would use the chain rule twice:

f(s,t) = e^u

u = sin(s*t);

u = sin(v);

v = s*t

v' = s;

u' = cos(s*t*)*s

f' = e^cos(s*t)*s

Maple adds *ln(exp), what's wrong with my way?

complete maple output: exp^sin(s*t)*cos(s*t)*t*ln(exp)

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?

My question is concerning finding Px(k) for a problem. There is a basketball player who takes two foul shots. The P of making the first is 2/3. Then assuming she missed the first, the P of making the second is 3/4, but if she makes the first, P of making the second shot is 1/2. X is the number of shots made. I have to find Px(k) for k=0,1,2, and then E(X). My first concern and real problem is that I'm not sure how to find Px(k) for one shot made since the probabilities for making one shot have two possible answers.

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

 

Hi,

I'm trying to obtain data points in an array or list form

from the plot I've drawn from implicit plot function.

Can anyone help  me?

Your help will be greatly appreciated.

-Alsune