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- var('vi1 ik il r1 r2 r3')
- eq1=Eq(0+vi1-r1*(1e-3-il)-r2*(1e-3-ik),0)
- eq2=Eq(0-r2*(ik-1e-3)-3-r3*ik,0)
- eq3=Eq(vi1-2*(-r2*(ik-1e-3))+3-r1*(il-1e-3)
- ans=solve([eq1,eq2,eq3,vi1)],[vi1,ik,il])
- ans[vi1].subs({r1:1e3,r2:2e3,r3:1e3})
- 5.00000000000000
- ans[ik].subs({r1:1e3,r2:2e3,r3:1e3})
- -0.000333333333333333
- ans[il].subs({r1:1e3,r2:2e3,r3:1e3})
- -0.00133333333333333
- (-r2*(ac[ik]-1e-3)).subs({r1:1e3,r2:2e3,r3:1e3})
- 2.66666666666667
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