solving for an unknown variable when given the rest

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laura webb
laura webb le 25 Nov 2020
Commenté : laura webb le 25 Nov 2020
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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Setsuna Yuuki.
Setsuna Yuuki. le 25 Nov 2020
Modifié(e) : Setsuna Yuuki. le 25 Nov 2020
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)
  1 commentaire
laura webb
laura webb le 25 Nov 2020
thank you! can't believe i was so genuinely confused

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