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Re: pi sin() on HP-32S?



#4

When I take the sin of pi on my HP 49g, in RAD mode, I get an answer of 0.But my 48gx gives me -2.067154E-13.
My 49 has serial nr Cn1480xxxx, could it have been some software changes with my 49g?


#5

Yes, I have noticed severe innacuracies with the 32sII's Radian mode. It converts from degrees fine, but when you use trig functions, it seems to not give you zero when it should. I tend to convert radian measures to degrees for trig functions
-ben


#6

this isnt a bug. this actual case is explained in the manual (see faq)

the answer given is correctly, sin(3.141592654) != 0

i know this can be a bit confusing.


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