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Student Support Forum > General > > "DSolve: The Function Y appears with no arguments"

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Please answer this:1+2 =



Original Message (ID '300528') By Forum Moderator:
In[1]:= DSolve[y'[x] == x (1 + y[x]^2), y[x], x] Out[1]= {{y[x] -> Tan[(1/2)*(x^2 + 2*C[1])]}} Same in 9.0, 7.0, and 5.2. Maybe there was a non-printing character in your notebook between a y and a "[". Cell menu - ConvertTo - RawInputForm could help identify what went wrong, or eliminate the problem.