Problem with evaluation of integration



Thank you very much, I used %e and it works!
Sincerely,
Chi Ben

On Wed, Feb 16, 2011 at 4:47 PM, David Billinghurst <dbmaxima at gmail.com>wrote:

> On 17/02/2011 7:57 AM, Chi Ben wrote:
>
>> When I'm using the integrate function to evaluate an expression, sometimes
>> Maxima gives me a value after calculation. But sometimes it just gives me a
>> formal mathematical expression. For example, when I enter this:
>> integrate(e^(-x),x,1,5);
>>
>
> Strange, because maxima knows the indefinite integral
>
> (%i7) integrate(e^(-x),x);
> (%o7) -1/(e^x*log(e))
>
> However, if your e - which is %e in maxima - is the base of the natural
> logarithm ~ 2.718... then all is not lost
>
> (%i8) integrate(%e^(-x),x,1,5);
> (%o8) %e^-1-%e^-5
>
>
>
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