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why is this happening? It's just an example from the textbook.

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승택 홍
승택 홍 2021-9-24
回答： Chunru 2021-9-24
f=@(x) x-3;
r=solve(f)
Check for incorrect argument data type or missing argument in call to function 'solve'.

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回答（1 个）

Chunru
Chunru 2021-9-24
Ran in:
syms x
f=@(x) x-3;
r=solve(f, x)
r = 
3

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