Solve for an implicitly defined variable

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Thomas Ward
Thomas Ward el 20 de Abr. de 2018
Respondida: Walter Roberson el 20 de Abr. de 2018
How do I use matlab to solve for an implicitly defined variable? For example
x=0.6953*ln(115/(215-x))-100

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Walter Roberson
Walter Roberson el 20 de Abr. de 2018 
syms x
vpasolve(x==0.6953*log(115/(215-x))-100)

There is a second solution, which is approximately 215 - -2.02E-195 . However, you cannot round that to 215: if you do round it then you would get a division by 0.

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