In Vector Calculus there are excellent commands for finding the normal vector to a curve (PrincipalNormal and TNBFrame) but none for finding the surface normal vector. It is possible to display the surface normal vector using PlotPositionVector's normal option, but this is good for visualization only, and the vector can't be used for further calculations.

Am I missing something, or is this really missing form the package?

Two example problems to be solved:

would like to solve for x in terms of z from z in terms of x

however, x2 = RootOf(z2-z3-z1+_Z^3) , what is _Z ?

ex1 := {z1=x1, z2=x3-x2^3, z3=-x1+x3, z4=-x1+x4};
solve({z1=x1, z2=x3-x2^3, z3=-x1+x3, z4=-x1+x4},{x1,x2,x3,x4})

{x1 = z1, x2 = RootOf(z2-z3-z1+_Z^3), x3 = z3+z1, x4 = z4+z1}

aim: To solve the van der pool DE  assuming pertubation expansion

I have the bellow code:

display(a); display(b);

where a, b are plots.

The output are two plots on two lines. How can I get the plots to be on the same line? 

Hi,

Is it possible in Maple to output a complex number using j (or i) instead of I ?

thanks,
Andrew

Hello,

I wish to enter in the math dot operator but I can't find the way to enter it in the document mod. I also searched the help and did not find a way.

all I want is to enter dot(varphi)

thanks

Rami

Hi

I have used the series command to expand sin(x) as a Taylor series about x=0, as follows:

In Maple 14

with(epsilon); > f:=[(x-u)^2+(y-v)^2-1,v^2-u^3,2*v*(x-u)+3*u^2*(y-v),(3*w*u^2-1)*(2*w*v-1)]; > printlevel:=2:

               Epsilon 0.618 (C) 2003 by Dongming Wang

[CharSet, ICS, IVD, PID, Prove, RIM, RegSer, SimSer, TriSer, Tsolve,

        dTriSer]

              ...

When I type a operation in maple such as limit, derivative, integral... then I enter. It only show the result. but I want it to show clearly  each step of  solving. What should I do?

Thank

I would like to see all the solutions for the following:

int(1/(a-(b+c)*t),t);

but the result only gives

(ln((-b-c)*t+a)/(-b-c)

For example, I can imagine that if b=-c in the integrand that the solution should be

t/a

and not undefined as it would be by substituting b=-c into the Maple result.

I tried

int(1/(a-(b+c)*x),x=0..t,AllSolutions);

but I didn't find that this gave the answer I was looking for either.

How to obtain a triagular signal ?

Thanks

In 2D Math of maple 15, when I type a operation  then I press Enter, It show the result below. But I want it to show the result next to the operation behind the equal sign. How should I do ?

for example:

instead of show :

7+9;

16

I want it to show this :

7 + 9 = 16

Help me!

Thank you

I want to be able to check my work and see if I have indeed got the correct mapping.

Say I want to find the image of a circle |z| = 3 in the complex plane under the mapping: w = 6/z

How would I do this?

Thanks

Hello!

1)Dr:=[[1,5],[2,6],[3,4],[4,5],[5,7],[6,8],[7,4],[8,6],[9,5],[10,7]]:

2)Y:=proc(i) Dr[i,2] end;ty:=proc(i) Dr[i,1] end;

3)P[X](omega)=(1/2)*{(Sum(Y(j)*cos(omega*(ty(j)-1/(2*omega*tan((Sum(sin(2*omega*ty(j)),j=1..N[0]))/(Sum(cos(2*omega*ty(j)),j=1..N[0]))))))^2,j=1..N[0]))/(Sum(cos(omega*(ty(j)-1/(2*omega*tan((Sum(sin(2*omega*ty(j)),j = 1..N[0]))/(Sum(cos(2*omega*ty(j)),j=1..N[0]))))))^2,j= 1..N[0]))+(Sum(Y(j)*sin(omega*(ty(j)-1/(2*omega*tan((Sum(sin(2*omega*ty(j...