how to choose the intended answer of an equation that has 4 solutions?

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fatemeh p
fatemeh p 2019-4-3
评论： fatemeh p 2019-4-3
hi, i used vpasolve to solve an equation that has 4 solutions but the problem is i need the one that is between 0 and 1.
how can i choose that one?
M2=vpasolve((((1+1.4*M1^2)/(1+1.4*M2^2))^2*((M2/M1)^2)*((1+0.2*M2^2)/(1+0.2*M1^2)))-(To2/To1),M2);
its because i need to put that one value in another equation.

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madhan ravi
madhan ravi 2019-4-3
R = double(M2);
Wanted = R(R>0 & R<1)

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