using bvp5c evaluate velocity and temperature at specific points
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Syed Mohiuddin
on 20 Mar 2025
Commented: Syed Mohiuddin
on 21 Mar 2025
I need to find the value of
and
at -1,-0.4,0,0.4,1, approximate the solution upto 5 decimal places


How should I find these in program. Please help me in this regard
The program is written for these equations



Program is given below
close all
clc
n = -1;
b1= 0.5;
b2 = 0.5;
GR1 = 10;
GR2 = 10;
A1 = 0.5;
P = 0.5;
m = 0.3;
Br = 0;
G1 = 1;
G3 = 1;
G4 = 1;
dydx=@(x,y)[y(4);
y(5);
y(6);
b1.*y(4).*y(5)-(1+b1.*y(2)).*(GR1.*G1.*y(2)+GR2.*G1.*y(3)-G3.*P);
b2.*y(5).^2-Br.*G4.*y(4).^2-(b2-b1).*y(2).*Br.*G4.*y(4).^2+b2.*b1.*Br.*G4.*y(2).^2.*y(4).^2;
A1.*y(3)];
BC = @(ya,yb)[ya(1);yb(1);ya(2)-(1+n);yb(2)-1.0;ya(3)-(1+m);yb(3)-1.0];
yinit = [0.01;0.01;0.01;0.01;0.01;0.01];
solint = bvpinit(linspace(-1,1,50),yinit);
S = bvp5c(dydx,BC,solint);
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