On Jan 8, 6:13�pm, "maxplanck" <erik.bo...@comcast.net> wrote:> I'm a bit stumped here, maybe someone can help me out? > > y = atan (sin(2*pi*x) / cos(2*pi*x)); > > s = atan2 (sin(2*pi*x) , cos(2*pi*x)); > > I would expect y and s to be equal, but they're not. > > Most surprising to me is that the maximum value of s appears to be pi, > despite the fact that the limit of atan2(a,b) as a/b->infinity is pi/2 > (right?) > > Can anyone clue me in as to why my expectations are being defied here? �I > think the root of my misunderstanding lies in my not understanding the > differences between atan(a/b) and atan2(a,b). > > Thanks, any help is much appreciatedMr maxplank, For enough money I can help you. I wish to by auto. Regards, Kamar Ruptan Dsp Guru
difference between atan2(x,y) and atan(x/y)
Started by ●January 8, 2008
Reply by ●January 9, 20082008-01-09
Reply by ●January 9, 20082008-01-09
DSPGURU wrote: I wish to by auto.>That's BUY auto. Don't you hate the way gora words all sound the same. -jim> Regards, > > Kamar Ruptan > Dsp Guru
Reply by ●January 10, 20082008-01-10
On Jan 9, 9:54 pm, DSPGURU <krup...@gmail.com> wrote:> On Jan 8, 7:56 pm, p.kootsoo...@remove.ieee.org (Peter K.) wrote: > > ... > > y is just the principle value, which will only be -pi/2 and pi/2....> > Peter, > > Word is "principal' not your word "principle". Correct wordings most > value if you are too be Dsp Guru!^^^ Kamar, On Jan 8, 8:43 pm, DSPGURU <krup...@gmail.com> wrote:> > IF they feel need or want too spend time. > > No person says Dsp Guru's have too know all subject or answers to all > doubts. > > I will do same as other Dsp Guru's. You must wait to see me at time I > talk to or answer doubts. Then you can juge fair.Word is "2" not your word "too". Correct wordings most value if you are to be Dsp Guru! Word is "judge" not your word "juge". Correct wordings most value if you are to be Dsp Guru! On Jan 7, 10:49 pm, DSPGURU <krup...@gmail.com> wrote: ...> For my last project I need MATHLAB code to place names on faces in my > class. Hoever has such a code, please send to me with good GUI. I > think it can be simple code, because we are all vary different to look > at, not like white people.Word is "Whoever" or "Whomever" (i never am sure which, but am always corrected when i guess) not your word "Hoever". Correct wordings most value if you are to be Dsp Guru! Word is "crackerd" or "honkies" (or, if you be a youngan, "wiggers") not your words "white people". Correct wordings most value if you are to be Dsp Guru! then there are examples of usage. but there are two many. Kamar, perhaps i was mistaken about you being a troll and your post a hoax. what makes you think that you're a DSPGURU? what do you know (about signal processing) that makes you helpful? it's a serious question. r b-j
Reply by ●January 10, 20082008-01-10
On Jan 9, 11:52�pm, robert bristow-johnson <r...@audioimagination.com> wrote:> On Jan 9, 9:54 pm, DSPGURU <krup...@gmail.com> wrote:> On Jan 8, 7:56 pm, p.kootsoo...@remove.ieee.org (Peter K.) wrote: > > > ... > > > y is just the principle value, which will only be -pi/2 and pi/2. > ... > > > Peter, > > > Word is "principal' not your word "principle". �Correct wordings most > > value if you are too be Dsp Guru! > > � � � � � � � � � ^^^ > Kamar, > > On Jan 8, 8:43 pm, DSPGURU <krup...@gmail.com> wrote: > > > > > IF they feel need or want too spend time. > > > No person says Dsp Guru's have too know all subject or answers to all > > doubts. > > > I will do same as other Dsp Guru's. �You must wait to see me at time I > > talk to or answer doubts. �Then you can juge fair. > > Word is "2" not your word "too". �Correct wordings most value if you > are to be Dsp Guru! > > Word is "judge" not your word "juge". �Correct wordings most value if > you are to be Dsp Guru! > > On Jan 7, 10:49 pm, DSPGURU <krup...@gmail.com> wrote: > ... > > > For my last project I need MATHLAB code to place names on faces in my > > class. �Hoever has such a code, please send to me with good GUI. �I > > think it can be simple code, because we are all vary different to look > > at, not like white people. > > Word is "Whoever" or "Whomever" (i never am sure which, but am always > corrected when i guess) not your word �"Hoever". �Correct wordings > most value if you are to be Dsp Guru! > > Word is "crackerd" or "honkies" (or, if you be a youngan, "wiggers") > not your words "white people". �Correct wordings most value if you are > to be Dsp Guru! > > then there are examples of usage. �but there are two many. > > Kamar, perhaps i was mistaken about you being a troll and your post a > hoax. �what makes you think that you're a DSPGURU? �what do you know > (about signal processing) that makes you helpful? > > it's a serious question. > > r b-jHaa! I check, it is 'to' not '2', we are both wrong. Funny, you seem likely have real command of English. You maybe Russian like Vlad? Why do call yourself filthy name! What is 'r' for? I am Dsp Guru becuase I almost finish classes. Do you have degree? I learn ways of FFT, filters, computer maths. I am expert level. That r *-*, is serious answer! Kind Regards, your friend, Kamar Ruptan Dsp Guru
Reply by ●January 10, 20082008-01-10
DSPGURU wrote:> On Jan 9, 11:52 pm, robert bristow-johnson <r...@audioimagination.com> > wrote: >> On Jan 9, 9:54 pm, DSPGURU <krup...@gmail.com> wrote:> On Jan 8, 7:56 pm, p.kootsoo...@remove.ieee.org (Peter K.) wrote: >> >>> ... >>>> y is just the principle value, which will only be -pi/2 and pi/2. >> ... >> >>> Peter, >>> Word is "principal' not your word "principle". Correct wordings most >>> value if you are too be Dsp Guru! >> ^^^ >> Kamar, >> >> On Jan 8, 8:43 pm, DSPGURU <krup...@gmail.com> wrote: >> >> >> >>> IF they feel need or want too spend time. >>> No person says Dsp Guru's have too know all subject or answers to all >>> doubts. >>> I will do same as other Dsp Guru's. You must wait to see me at time I >>> talk to or answer doubts. Then you can juge fair. >> Word is "2" not your word "too". Correct wordings most value if you >> are to be Dsp Guru! >> >> Word is "judge" not your word "juge". Correct wordings most value if >> you are to be Dsp Guru! >> >> On Jan 7, 10:49 pm, DSPGURU <krup...@gmail.com> wrote: >> ... >> >>> For my last project I need MATHLAB code to place names on faces in my >>> class. Hoever has such a code, please send to me with good GUI. I >>> think it can be simple code, because we are all vary different to look >>> at, not like white people. >> Word is "Whoever" or "Whomever" (i never am sure which, but am always >> corrected when i guess) not your word "Hoever". Correct wordings >> most value if you are to be Dsp Guru! >> >> Word is "crackerd" or "honkies" (or, if you be a youngan, "wiggers") >> not your words "white people". Correct wordings most value if you are >> to be Dsp Guru! >> >> then there are examples of usage. but there are two many. >> >> Kamar, perhaps i was mistaken about you being a troll and your post a >> hoax. what makes you think that you're a DSPGURU? what do you know >> (about signal processing) that makes you helpful? >> >> it's a serious question. >> >> r b-j > > Haa! > > I check, it is 'to' not '2', we are both wrong. Funny, you seem > likely have real command of English. You maybe Russian like Vlad? > > Why do call yourself filthy name! What is 'r' for? > > I am Dsp Guru becuase I almost finish classes. Do you have degree? I > learn ways of FFT, filters, computer maths. I am expert level.I hate to feed the trolls, but that really does sound like being expert level at guitar hero when there are people in Steve Howe's league posting here. :-)> That r *-*, is serious answer! > > Kind Regards, > > your friend, > > Kamar Ruptan > Dsp GuruSteve
Reply by ●January 10, 20082008-01-10
DSPGURU wrote: ...> I am Dsp Guru becuase I almost finish classes. Do you have degree? I > learn ways of FFT, filters, computer maths. I am expert level."Weird dog. Shits pine cones!" ... Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●January 10, 20082008-01-10
DSPGURU <kruptan@gmail.com> writes:> [...] > Why do call yourself filthy name! What is 'r' for?I had to think about that: b-j? Thanks for brightening my day - that's the best laugh I've had! Robert, your filthy name is safe with me... -- % Randy Yates % "Ticket to the moon, flight leaves here today %% Fuquay-Varina, NC % from Satellite 2" %%% 919-577-9882 % 'Ticket To The Moon' %%%% <yates@ieee.org> % *Time*, Electric Light Orchestra http://www.digitalsignallabs.com
Reply by ●January 10, 20082008-01-10
Steve Underwood <steveu@dis.org> writes:> I hate to feed the trolls, but that really does sound like being > expert level at guitar hero when there are people in Steve Howe's > league posting here. :-)I *do* love your analogy, Steve! -- % Randy Yates % "The dreamer, the unwoken fool - %% Fuquay-Varina, NC % in dreams, no pain will kiss the brow..." %%% 919-577-9882 % %%%% <yates@ieee.org> % 'Eldorado Overture', *Eldorado*, ELO http://www.digitalsignallabs.com
Reply by ●January 10, 20082008-01-10
On Wed, 9 Jan 2008 23:53:09 -0800 (PST), DSPGURU <kruptan@gmail.com> wrote:>On Jan 9, 11:52�pm, robert bristow-johnson <r...@audioimagination.com> >wrote: >> On Jan 9, 9:54 pm, DSPGURU <krup...@gmail.com> wrote:> On Jan 8, 7:56 pm, p.kootsoo...@remove.ieee.org (Peter K.) wrote: >> >> > ... >> > > y is just the principle value, which will only be -pi/2 and pi/2. >> ... >> >> > Peter, >> >> > Word is "principal' not your word "principle". �Correct wordings most >> > value if you are too be Dsp Guru! >> >> � � � � � � � � � ^^^ >> Kamar, >> >> On Jan 8, 8:43 pm, DSPGURU <krup...@gmail.com> wrote: >> >> >> >> > IF they feel need or want too spend time. >> >> > No person says Dsp Guru's have too know all subject or answers to all >> > doubts. >> >> > I will do same as other Dsp Guru's. �You must wait to see me at time I >> > talk to or answer doubts. �Then you can juge fair. >> >> Word is "2" not your word "too". �Correct wordings most value if you >> are to be Dsp Guru! >> >> Word is "judge" not your word "juge". �Correct wordings most value if >> you are to be Dsp Guru! >> >> On Jan 7, 10:49 pm, DSPGURU <krup...@gmail.com> wrote: >> ... >> >> > For my last project I need MATHLAB code to place names on faces in my >> > class. �Hoever has such a code, please send to me with good GUI. �I >> > think it can be simple code, because we are all vary different to look >> > at, not like white people. >> >> Word is "Whoever" or "Whomever" (i never am sure which, but am always >> corrected when i guess) not your word �"Hoever". �Correct wordings >> most value if you are to be Dsp Guru! >> >> Word is "crackerd" or "honkies" (or, if you be a youngan, "wiggers") >> not your words "white people". �Correct wordings most value if you are >> to be Dsp Guru! >> >> then there are examples of usage. �but there are two many. >> >> Kamar, perhaps i was mistaken about you being a troll and your post a >> hoax. �what makes you think that you're a DSPGURU? �what do you know >> (about signal processing) that makes you helpful? >> >> it's a serious question. >> >> r b-j > >Haa! > >I check, it is 'to' not '2', we are both wrong. Funny, you seem >likely have real command of English. You maybe Russian like Vlad?He's from North Dakota. That's even worse! And I can say that because I'm from South Dakota. ;) Eric Jacobsen Minister of Algorithms Abineau Communications http://www.ericjacobsen.org
Reply by ●January 10, 20082008-01-10
On Thu, 10 Jan 2008 12:25:07 -0500, Randy Yates <yates@ieee.org> wrote:>DSPGURU <kruptan@gmail.com> writes: >> [...] >> Why do call yourself filthy name! What is 'r' for? > >I had to think about that: b-j? > >Thanks for brightening my day - that's the best laugh I've had! > >Robert, your filthy name is safe with me...Between this and the Guitar Hero comments this is the funniest thread in a while. :) Eric Jacobsen Minister of Algorithms Abineau Communications http://www.ericjacobsen.org
