what do i do?
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eqn = (da-db)/(da-db0) == (((qa-qb)*t+vb0)/vbo)^(qa/(qa-qb)); solve(eqn,qb);
error: Explicit solution cannot be found.
回答（1 个）
Walter Roberson
2018-6-14
The solution is
(qa*lambertw(-ln((da-db)/(da-db0))*vbo*((da-db)/(da-db0))^(-vb0/(qa*t))/(qa*t))*t+ln((da-db)/(da-db0))*(qa*t+vb0))/(ln((da-db)/(da-db0))*t)
Unfortunately, the Symbolic Toolbox is weak on finding solutions involving lambertw, so you would have difficulty finding this solution.
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2018-6-14
2018-6-14
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