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Student Support Forum: 'Strange out put of DSolve' topicStudent Support Forum > General > Archives > "Strange out put of DSolve"

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Shariel
02/02/13 11:50am

Hi to all.

I have a differential equation with a strange out put when using DSolve:

1) When I put
DSolve[y'[x] == Tan[x + y[x]] + 1, y[x], x]
Mathematica can solve it!

2) When I put
DSolve[y'[x] == Tan[x + y[x]] - 1, y[x], x]
Mathematica is able to solve it also!

3) But the strange out put is when you put
DSolve[y'[x] == Tan[x + y[x]], y[x], x]

the no any out put!!! just {} !!! the same as in the explicit form!
Although the Maple could solve it, but I like the Mathematica and want to stay with it!
Does any body know why the empty answer!??

Mathematica Version - 6 (Linux Ubuntu)

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Subject (listing for 'Strange out put of DSolve')
Author Date Posted
Strange out put of DSolve Shariel 02/02/13 11:50am
Re: Strange out put of DSolve yehuda 02/03/13 04:03am
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