| Author |
Comment/Response |
Carmen Garcia
|
 02/18/02 12:26pm
If I enter the following equation as given in the example:
DSolve[y'[x] == a y[x] + 1, y[x], x]
I get the following error:
DSolve::deqn :
Equation or list of equations expected instead
of True in the first argument True.
Out[177]= DSolve[True,y[x],x]
I must note that the above equation is 'DSolved' correctly in the example help notepad.
However, if I add a second asterisk to increase the derivative to degree two as follows:
DSolve[y''[x] == a y[x] + 1, y[x], x]
then I get a proper solution.
If I modify the equation on the example help notepad, for instance by changing to degree-two as I did above, and then reverting back to degree-one, the equation gives the same error there, too.
What's the problem here?
URL: , |
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