2 years, 1 days

## please simplify this complicated equati...

@Kitonum  Thanks please simplify the eqn 3 like before of this maple worksheet :

metriccalculaions_new.mw

## Still showing the same error...

@Mariusz Iwaniuk  still showing the same problem .How to resolve this issue?

solve(((&PartialD;(-    &nabla;(f) ))/(&PartialD; t)+((DotProduct(v[0],&nabla;(f)))*(1-e(DotProduct(B,Omega))))+(c[s0]^(2)*rho[1])/(rho[0])(1-e(DotProduct(B,Omega)))+e(CrossProduct(&nabla; (f),B))*Omega-e*(((DotProduct(-&nabla;(f),Omega))*(DotProduct(B,&nabla;))*(-&nabla;f))+e(E)*(1-(DotProduct(B,Omega)))+e^(2)(DotProduct(E,B))*Omega-e*(((CrossProduct(E,Omega))*(&nabla;(-&nabla;f))))),rho[1]);

## Error...

@tomleslie halfsec^h(u).mw In this worksheet I'm not able to plot  y1(u) and v1(u) it's showing for Error, invalid input: RHS expects 1 argument, but received 0 messages.And when I'm trying to solve the 2nd order differential equation of v(u) it's showing this message- Warning, unable to evaluate the function to numeric values in the region; see the plotting command's help page to ensure the calling sequence is correct.

## Can't plot...

nw.m.mw This is the worksheet @tomleslie

## @tomleslie  you can assume any valu...

@tomleslie  you can assume any value like a=5  and in the region where u>=5 analytic solution sholud  have a solution like the picture shown below : I have to find analytical solution of x(u) in this form you can take any value of a  ;u<=-5,-5<=u<=5,u>=5 nw.m.mw this is the maple worksheet

## @tomleslie thanks it's working...

@tomleslie thanks it's working

## @tomleslie  display part is not wor...

@tomleslie  display part is not working in maple  version 12

## Do you know how to solve Warning, left b...

@tomleslie The worksheet:ode1.mw I want to plot  three funnctins p(u) ,x(u) and x1(u) in the same plot with bc: x(0)=1,D(x)(0)=0,x1(2)=1,D(x1)(2)=0

Btw Thanks odeSys2.mw it's working.

## I'm having problem solving numerical sol...

@tomleslie  this is the maple worksheet. simpODE.mw