duydaniel

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16 years, 201 days

MaplePrimes Activity


These are replies submitted by duydaniel

It is awesome to know... but it is hard to memorize. I'd like to ask your opinion: Should I order the printed manual or just read the free electronic version of it on computer? Thanks.
Thank you very much. Sometime, Maple is playing trick with me. As I load and unload "Real Domain" package... the results sometime are unpredictable. Sometime I have to save the file, close the program for 5 mins and comeback... hit the !!! button to obtain the right answers. Another complains I would have is the 0^0 I believe it should be "undefined" but Maple gives 1 as the answer. Here is why (my professor taught me): 0^0 = 0^(m-m) [when m is any real non-zero number] 0^(m-m) = (0^m)/(0^m) We know that 0^m = 0 so 0^m/0^m meant 0/0 = undefined
Maple however works over the complex. For example in x = 2 one has [sqrt(sin(x)) , sqrt(cos(x))] ~ [0.95*I, 0.64*I], so the quotient is real. Hence Maple plots even for x in -Pi ... -Pi/2.
Hi. Sorry if I am ignorant. I thought there is no way to graph (non-real) values. When x = 2 we have sqrt(sin(2)) ~ 0.953 (real value) and sqrt(cos(2)) ~0.645i (non-real value). So the real value divided by the non real value... I meant, I don't know how to graph such thing. PS. I think Maple confuses the different between sqrt(sin(x)/cos(x)) and sqrt(sin(x))/sqrt(cos(x)) I think that they are different.
And: still I would like to know whether TI89 replies by symbolic answers for the roots and the integral.
No, the Ti doesn't.
Hi there. Thanks for the helps. I don't fully understand all the commands above since I am new to Maple and use it rarely. In fact, I think in order to obtain the solutions what you have done is tricky to me. Suppose you teach people how to solve such problems above via Maple by such methods, I would rather prefer pencil and paper... unless they UPGRADE Maple engine.
Hi there. Thanks for the helps. I don't fully understand all the commands above since I am new to Maple and use it rarely. In fact, I think in order to obtain the solutions what you have done is tricky to me. Suppose you teach people how to solve such problems above via Maple by such methods, I would rather prefer pencil and paper.
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