afernande1008

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These are questions asked by afernande1008

Hi.

I am calculating an integral but I cannot get the result.
Can you help me.
I provide the file.

Tank you

Regards

integral_doubt.mw
 

restart

Rm := 2.5*10^(-3)

0.25e-2

(1)

Lm := 10^(-3)

1/1000

(2)

Ms := 10.7*10^5

0.11e7

(3)

ICMr := `assuming`([Ms*(int((z(t)-Z)*((Rm^2+r(t)^2+(z(t)-Z)^2)*(int(sqrt(1-4*r(t)*Rm*sin(phi)^2/((Rm+r(t))^2+(z(t)-Z)^2)), phi = 0 .. (1/2)*Pi))/((Rm-r(t))^2+(z(t)-Z)^2)-(int(1/sqrt(1-4*r(t)*Rm*sin(phi)^2/((Rm+r(t))^2+(z(t)-Z)^2)), phi = 0 .. (1/2)*Pi)))/(sqrt((Rm+r(t))^2+(z(t)-Z)^2)*r(t)), Z = -Lm .. 0))/(2*Pi)], [0 <= r(t), r(t) <= 2.5*10^(-3)])

 

(12)

``

subs([r(t) = 0.24e-2, z(t) = 0.1e-2], ICMr)

 

(13)
 

 

   

 


 

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