Laplace Transform Bug??

09112015, 07:39 AM
Post: #1




Laplace Transform Bug??
Hey dear people I think the Laplace Transform has a little bug o Am I making a mistake??


09112015, 12:08 PM
Post: #2




RE: Laplace Transform Bug??
There a missing evalf at the end.


09152015, 08:52 PM
Post: #3




RE: Laplace Transform Bug??
Hello,
so does this mean the Prime does not always return an exact value in CAS mode? Is this a bug or just a matter of usage? I get a simelar issue with this line: solve(TAN(x)=1,x,(pi/2)..(pi/2)) It outputs: 0.785398163397 If i use the exact() command I get: (286602)/(364913) as the result. Basicly this is pi/4. The line above is not. It is almost. I think I wouldn't even care. But shouldn't it say the result ist pi/4 instead of a the fraction? Another thing that I noticed is that if I try this in degree mode I get 45° which is the exact answer I would expect. But the output changes there too if I do not use the exact() command. Using it exact() the output is: 45° Without: 45.° So there is a dot at the end. I thought I may share this little things. In my opinion this are no big bugs or something similar. Usually I would not care about something like this because I do not think I will ever have to use such precise numbers. Greetings 

09152015, 09:09 PM
Post: #4




RE: Laplace Transform Bug??
(09152015 08:52 PM)MrMcChicken Wrote: Hello, I may be mistaken but I believe that if you want exact answers, then you should avoid supplying guesses or search intervals. solve(tan(x)=1,x) results in pi/4 The exact() command does not seem to work because the input is an approximation of pi/4. You may find the QPI program useful in such instances. Graph 3D  QPI  SolveSys 

09162015, 06:00 PM
Post: #5




RE: Laplace Transform Bug??
(09152015 09:09 PM)Han Wrote: I may be mistaken but I believe that if you want exact answers, then you should avoid supplying guesses or search intervals. solve(tan(x)=1,x) results in pi/4 Thanks a lot! I guess there is still a lot so learn about this calculator, I got mine last week. Luckily there are some hekpful people here . By the way: Thanks for your cool 3D graphing app! 

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