Hi

 

In earligere versions of maple (14 and 15) I yoused this code (program) to plot the area between functions, but it does not work in maple 17 (or 16).

integralplot2:=proc(f1,f2,a,b,{[color, colour] := blue,transparency := 0.5,numpoints:=500})     

local mingr,maxgr,variable,p,c,n,pts1,pts2,polys,i,xkoor,ytop,ybottom,yvals,plotf1,plotf2;          

if evalf(a)<evalf(b) then       

Hello I have the following system of equations and I want to solve for rho1 and z1

E := (1/2)*(1/rho1^2+1/rho1^2)-1/sqrt(z1^2+rho1^2)-1/sqrt((R-z1)^2+rho1^2)-1/sqrt(z1^2+rho1^2)-1/sqrt((R-z1)^2+rho1^2)+1/R+1/sqrt((2*rho1)^2+(R-2*z1)^2);

Er1 := diff(E, rho1);

Ez1 := diff(E, z1);

solve([Er1, Ez1], {z1, rho1});

The system is a function of R.

The solve command spits out Kernel lost after some time. So my question is how can I solve it ?

My version is maple 13. I tried to find out how to solve system of linear equations like A*X=b, whre A is a matrix and X and b is a vector, the solution is X:=linsolve(A, b),

But, the system just return the formula of linsolve(A,b) where it replace A and b by their forms of matrix. Simplely , the software doesn't show the result. I tried also evalm(linsolve(A,b)) , but it just return dezens of linsolve(a,b).

there is a triangle, one side is t, another side is sqrt(1-t^2), however this do not need sqrt

i use sin law, can not dsolved the following equation, it can onlyl be solved for right angled triangle

is it only in circle's triangle be solved? 

besides triangle, the goal of mine to use another shape 

ode := diff(u(t),t)-f(t)=0,diff(f(t),t)+t*f(t)=0,diff(f(t),t$2)+(t*sin(a)*sin(b))^2*f(t)=0;  

ode := diff(u(t),t)-f(t)=0,diff(f(t...

The problem is as follows:

1- define r := rem(x^3+x+1, x^2+x+1, x, 'q')

2- then once you evaluate this expression, in variables list you may see r as the only variable, whereas q is the quotient variable and it is not provided there.

3- for example if you evaluate q it will give x-1

4- or even you can get the assigned varibles list by anames(user) and it gives both r an q

5- the question is: why q is not shown in variables list

In the Physics package (in Physics:-Vectors, to be more precise), 3-vectors are advantageously represented as

v_:=v1*_i+v2*_j+v3*_k;

with the _i etc. being the unit vectors. I would like to be able to plot these on occasion, either as individual vectors or the line connecting the end points. I can use Component to get at the individual numbers and get this done, but I would like to overload the plot command to do this in a more natural fashion.

By poking...

I cant seem to figure out how to solve this

 

∫(1)/(5+2x^2)dx

 

please help me out thanks :)

      *

    /   \

   *    *

    \  /

     *

restart;

read("D:/Poset2/posets2.4v.txt"):

with(posets):

L := chain(2) &* chain(2);

plot_poset(L);

lattice(L);

autgroup(L);

 

   *    *

    \  /

     *

im unsure on how to start/solve this problem any help would be appreciated

 

∫(x^5)/(x^12-3)^(1/2)

How would i go about integrating

(1)/(x^2+2)

 

I know it has to do something with arc tan but it doesnt match up completely what would I be able to do?

How would i go about integrating

(1)/(x^2+2)

 

I know it has to do something with arc tan but it doesnt match up completely what would I be able to do?

When I am plotting functions with known asymptotes, they do not show, even though the text books show them.Also, I can use the Student Calculus1 Asymptote function to calculate that there is an asymptote, but when plotting, they don't show up.I perused plot/options but cannot find an option that I could enable/disable to have the asymptotes show in the graphs.

Hello every one,

While plotting contours with grid size [200,200] my computer consume too much time to

execute the commond. To have an idea, the current process which I am running right now already

took 2380.22s and 68.60M and still its on.

Any suggestion to make the contour plot process faster?

Thanks

restart;

ode := diff(u(t),t)-f(t)=0 ,diff(f(t),t)+(t+sqrt(t^2-t*n))*f(t)=0,diff(f(t),t$2)+(1-(t+sqrt(t^2-t*n))^2)*f(t)=0;

dsolve({ode},[f(t),u(t)]);

I'm not sure why I get an error in the following simple maple code:

test:=s->fsolve(t^3=s,t);     % Simplified implicit expression for illustration.      

test(8);  % (this yields the answer 2 - good)

plot(test(s),s=0..8);

Error, (in fsolve) s is in the equation, and is not solved for

Why do I receive this error?

Same error occurs with:

fdiff(test(s),s=1);

I'm a casual user of Maple...