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radhika

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7 years, 104 days
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These are questions asked by radhika

flux determination...

radhika 30 Maple
wave
March 13 2018
0 0

@mskalsi

I was trying the direct method for conservation law of wave equation.But the fluxes and conserved density are not coming correct in eq.(4)(see attached file) because (1) and (6) are not same.What mistake have I done?

 

 

wave_eq_3.mws

how to solve non-linear equation?...

radhika 30 Maple
dsolve
January 01 2018
0 2
restart;
with(PDETools);
diff(r(t), t)-(diff(a[3](t), t))*r(t)/a[3](t)+a[1](t)*p[3](t)-3*r(t)*r(t) = 0;
                                        
dsolve(diff(r(t), t)-(diff(a[3](t), t))*r(t)/a[3](t)+a[1](t)*p[3](t)-3*r(t)^2 = 0, r(t));

 it does not give any solution ,please help.

how to see all steps of solution in mapl...

radhika 30 Maple
dsolve
January 01 2018
2 0

how to see all steps of solution in maple? for eg: any second order differential eq.

how to solve optimal system?...

radhika 30 Maple
vector-field
January 01 2018
0 0

how to solve optimal system of vector   fields in lie theory in maple?

how to find infinitisimals of system of ...

radhika 30 Maple
pde
November 17 2017
1 0

how to find infinitisimals of system of differential equations?

i have system of two dependent variables and two independent variables.

[-(diff(psi[2], x))+diff(psi[1], t, t)-2*n*(psi[1]^2+psi[2]^2)*psi[1]-beta*(diff(psi[1], x, t)) = 0,

diff(psi[1], x)+diff(psi[2], t, t)-2*n*(psi[1]^2+psi[2]^2)*psi[2]-beta*(diff(psi[2], x, t)) = 0]

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