solving for an unknown variable when given the rest

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laura webb
laura webb 2020-11-25
评论： laura webb 2020-11-25
i'm new to using matlab and i've been stuck on this for a while
i'm trying to calculate the value of V but i keep getting errors
syms V
y = 0.05;
k = 0.0806;
v = 90;
N = 4;
h = solve(y == 1/((1+k(V/v))^N),V)
Error using sym/subsindex (line 825)
Invalid indexing or function definition. Indexing must follow MATLAB indexing. Function arguments must be
symbolic variables, and function body must be sym expression.
Error in untitled2 (line 8)
h = solve(y == 1/((1+k(V/v))^N),V)

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采纳的回答

Setsuna Yuuki.
Setsuna Yuuki. 2020-11-25
编辑：Setsuna Yuuki. 2020-11-25
syms V
y = 0.05;
k = 0.0806;
v = 90;
N = 4;
h = solve(y == 1/((1+k*(V/v))^N),V) %multiplication sign missing
you only should change
h = solve(y == 1/((1+k(V/v))^N),V) --> h = solve(y == 1/((1+k*(V/v))^N),V)

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