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Earlier this week I asked questions on a homework assignment and one user deleted the questions and told me to do my own homework. I became mad 'cussed out' the user. I want to aplogize to anyone I may offended, especially David Eppstein, whom I have sent a message on thier talk page. If anone was wodering, I ended up getting an 88 on the test. If soem Wikipedian believes this needs to be deleted because it's not what the desk is for, then do it, I jsut didn't see a more practical way to apologize. schyler 00:35, 4 October 2007 (UTC)
It's okay, we forgive you. I think this is a good case of WP:IAR to let you post this here.-- Mostargue 00:53, 4 October 2007 (UTC)
No problem schyler, although it's definitely good to avoid insults and name-calling, you have every right to object if you feel someone was being less-than-helpful with their answer. Sometimes people worry more about "enforcement" than about helping people figure out how to properly use Wikipedia and get familiar with all the "rules". This is not to "blame" anyone, just to say we can all do our part to help avoid misunderstandings.
In the future, if you want to make a post like this, (a general-purpose comment instead of a question), feel free to post it at Wikipedia talk:Reference desk. Just like with Wikipedia articles, the reference desk also has a talk page. (See also, Wikipedia:Talk page guidelines and Wikipedia:No personal attacks for more information, both of those have "quick summaries" so you don't have to read through the whole thing if you're busy).
Thanks again for your original question and for your apology. Regards. dr.ef.tymac 06:30, 4 October 2007 (UTC)
I know that in early calculus, 0/0, (undefined)/(undefined), and (undefined)-(undefined) are indeterminate forms. Are there any other indeterminate forms that are suitable for newbies (to calculus)? -- KushalClick me! write to me 03:43, 4 October 2007 (UTC)
0^0, 0^∞, 1^∞.--
Mostargue
05:20, 4 October 2007 (UTC)
Interesting, (although I do not understand all of it.) Thanks guys! (this thread is still open I guess) -- KushalClick me! write to me 17:29, 4 October 2007 (UTC)
ah, I see what my problem was. I meant .-- Mostargue 11:07, 5 October 2007 (UTC)
Also, for indeterminate forms, couldn't we just look at the value of a discontinuous function at the discontinuity, such as tan(90°) (that is and/or ) ?
StuRat
15:54, 5 October 2007 (UTC)
I am off a tangent with this question, but is = 1? -- KushalClick me! write to me 20:09, 5 October 2007 (UTC)
Is ðy/ðx=1/(ðx/ðy). —Preceding unsigned comment added by 218.248.2.51 ( talk) 05:52, 4 October 2007 (UTC)
Lamb-"Both Guns Blazing"-Iam. More questions I answer, the more of my own questions are answered.-- Mostargue 06:49, 4 October 2007 (UTC)
I've just looked up incircle and was surprised to see the definition given for excircles. What is the circle called that goes through the three corners of a triangle? Do we have an article on it? -- SGBailey 06:24, 4 October 2007 (UTC)
what does a term with "i" represent in an equation.as "i"represent squareroot of -1,a term with it (may be sin or cos )represents what part of physical value when squareroot of -1 dosent exist or is imaginary,n still most of forms uses i,just as in equn of electromagnetic radiations or exponential form of fourier series a term with i is mandatory. —Preceding unsigned comment added by 202.141.149.165 ( talk) 13:36, 4 October 2007 (UTC)
a fourier form is used 2 represent a time domain signal to frequency domain signal,n orthogonal signals r used,just as in trignometric form of fourier signal "what does each sine term correspond 2 for say (a simple NRZ signal used for digital communication)". —Preceding unsigned comment added by 202.141.149.165 ( talk) 13:49, 4 October 2007 (UTC)
a^3 + 2a+5 how can i solve this within 5 secs —Preceding unsigned comment added by 59.93.243.198 ( talk) 17:24, 4 October 2007 (UTC)
Maybe he's asking how to factor it.-- Mostargue 12:22, 5 October 2007 (UTC)
There is one real root, −1.328268856, and one pair of complex conjugate roots, 0.6641344278 ± i·1.822971095 . If you have downloaded the J interpreter you can solve it within 5 seconds by typing this line:
p. 5 2 0 1
and the result appears as
┌─┬───────────────────────────────────────────────────────────────┐ │1│0.6641344278j1.822971095 0.6641344278j_1.822971095 _1.328268856│ └─┴───────────────────────────────────────────────────────────────┘
showing the high term coefficient, and the 3 roots. Bo Jacoby 19:58, 6 October 2007 (UTC).
there are three types of women in this world, what are they. i begged my proffesor for a clue as to what these types are pertaining to. he said to me, that it deals only with phisical appearence. there are 3 categories of body types that only women fall into, only three. i am desperate for the answer please help. he then said he asked his quantitative research analysis class the question, and only one person was able to find the answer, and he was very impressed. i am the only student he has given this clue to, and it would be very much appreciated to receive the answer... thanks!
Etro —Preceding unsigned comment added by 151.196.108.226 ( talk) 17:55, 4 October 2007 (UTC)
x×.8=4032 —Preceding unsigned comment added by 71.225.135.106 ( talk) 19:03, 4 October 2007 (UTC)
I expect i'm asking a question which Wikipedia already has an article for, but i'll ask anyway as i can't find one;
(also, should this be in computing or mathematics?)
With Traveling Salesman computation i was thinking about reducing the time of computation by counting the length of an in-construction path as we go (with each added edge) and if the length of path is greater than the current best upper band at that time abandoning the unfinished path - But is it quicker to do it this way (assuming time to calculate length of path increases with increase to the path size) and removing 'over' paths as we go than computing the length only when the path is complete and deciding if the path is shorter - Also at with how many vertices would one system become faster than the other surely as the number of vertices increases so does the calculation time of the first method but so does the possible gain of not having to construct full paths?
Maybe i should start Differentiating?
Thanks!
- Benbread 19:18, 4 October 2007 (UTC)
Hi. There are probably different links for SHA-1, SHA-2, SHA-512, etc. The problem is, what exactly are those links? The Template:User committed identity gives the link to SHA-1, and the article gives the links to a few, but where are the links to all the SHA websites, say for example where is the link for calculating SHA-512? Can someone list me the links of those websites, and where you got it from? I don't want links to sites other than those used to directly calculate a string into a hash code, so I don't want any sites with info about the SHA websites, I want the actual links themselves. This question was originally from Talk:SHA hash functions. Thanks. ~ A H 1( T C U) 20:43, 4 October 2007 (UTC)
Does the function y = xx have any significance? Does it have a name? I've always found it a particularly intriguing function in the abstract, especially for –1 ≤ x ≤ 1. (Then there are the related functions y = (–x)x, y = x(–x), and y = (–x)(–x).) Thanks. — Michael J 05:21, 5 October 2007 (UTC)
It arises in analyzing Exponentiation#Zero_to_the_zero_power.-- Mostargue 11:02, 5 October 2007 (UTC)
It can be written using tetration: y=2x Alpha Omicron 15:21, 5 October 2007 (UTC)
Mathematics desk | ||
---|---|---|
< October 3 | << Sep | October | Nov >> | October 5 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Earlier this week I asked questions on a homework assignment and one user deleted the questions and told me to do my own homework. I became mad 'cussed out' the user. I want to aplogize to anyone I may offended, especially David Eppstein, whom I have sent a message on thier talk page. If anone was wodering, I ended up getting an 88 on the test. If soem Wikipedian believes this needs to be deleted because it's not what the desk is for, then do it, I jsut didn't see a more practical way to apologize. schyler 00:35, 4 October 2007 (UTC)
It's okay, we forgive you. I think this is a good case of WP:IAR to let you post this here.-- Mostargue 00:53, 4 October 2007 (UTC)
No problem schyler, although it's definitely good to avoid insults and name-calling, you have every right to object if you feel someone was being less-than-helpful with their answer. Sometimes people worry more about "enforcement" than about helping people figure out how to properly use Wikipedia and get familiar with all the "rules". This is not to "blame" anyone, just to say we can all do our part to help avoid misunderstandings.
In the future, if you want to make a post like this, (a general-purpose comment instead of a question), feel free to post it at Wikipedia talk:Reference desk. Just like with Wikipedia articles, the reference desk also has a talk page. (See also, Wikipedia:Talk page guidelines and Wikipedia:No personal attacks for more information, both of those have "quick summaries" so you don't have to read through the whole thing if you're busy).
Thanks again for your original question and for your apology. Regards. dr.ef.tymac 06:30, 4 October 2007 (UTC)
I know that in early calculus, 0/0, (undefined)/(undefined), and (undefined)-(undefined) are indeterminate forms. Are there any other indeterminate forms that are suitable for newbies (to calculus)? -- KushalClick me! write to me 03:43, 4 October 2007 (UTC)
0^0, 0^∞, 1^∞.--
Mostargue
05:20, 4 October 2007 (UTC)
Interesting, (although I do not understand all of it.) Thanks guys! (this thread is still open I guess) -- KushalClick me! write to me 17:29, 4 October 2007 (UTC)
ah, I see what my problem was. I meant .-- Mostargue 11:07, 5 October 2007 (UTC)
Also, for indeterminate forms, couldn't we just look at the value of a discontinuous function at the discontinuity, such as tan(90°) (that is and/or ) ?
StuRat
15:54, 5 October 2007 (UTC)
I am off a tangent with this question, but is = 1? -- KushalClick me! write to me 20:09, 5 October 2007 (UTC)
Is ðy/ðx=1/(ðx/ðy). —Preceding unsigned comment added by 218.248.2.51 ( talk) 05:52, 4 October 2007 (UTC)
Lamb-"Both Guns Blazing"-Iam. More questions I answer, the more of my own questions are answered.-- Mostargue 06:49, 4 October 2007 (UTC)
I've just looked up incircle and was surprised to see the definition given for excircles. What is the circle called that goes through the three corners of a triangle? Do we have an article on it? -- SGBailey 06:24, 4 October 2007 (UTC)
what does a term with "i" represent in an equation.as "i"represent squareroot of -1,a term with it (may be sin or cos )represents what part of physical value when squareroot of -1 dosent exist or is imaginary,n still most of forms uses i,just as in equn of electromagnetic radiations or exponential form of fourier series a term with i is mandatory. —Preceding unsigned comment added by 202.141.149.165 ( talk) 13:36, 4 October 2007 (UTC)
a fourier form is used 2 represent a time domain signal to frequency domain signal,n orthogonal signals r used,just as in trignometric form of fourier signal "what does each sine term correspond 2 for say (a simple NRZ signal used for digital communication)". —Preceding unsigned comment added by 202.141.149.165 ( talk) 13:49, 4 October 2007 (UTC)
a^3 + 2a+5 how can i solve this within 5 secs —Preceding unsigned comment added by 59.93.243.198 ( talk) 17:24, 4 October 2007 (UTC)
Maybe he's asking how to factor it.-- Mostargue 12:22, 5 October 2007 (UTC)
There is one real root, −1.328268856, and one pair of complex conjugate roots, 0.6641344278 ± i·1.822971095 . If you have downloaded the J interpreter you can solve it within 5 seconds by typing this line:
p. 5 2 0 1
and the result appears as
┌─┬───────────────────────────────────────────────────────────────┐ │1│0.6641344278j1.822971095 0.6641344278j_1.822971095 _1.328268856│ └─┴───────────────────────────────────────────────────────────────┘
showing the high term coefficient, and the 3 roots. Bo Jacoby 19:58, 6 October 2007 (UTC).
there are three types of women in this world, what are they. i begged my proffesor for a clue as to what these types are pertaining to. he said to me, that it deals only with phisical appearence. there are 3 categories of body types that only women fall into, only three. i am desperate for the answer please help. he then said he asked his quantitative research analysis class the question, and only one person was able to find the answer, and he was very impressed. i am the only student he has given this clue to, and it would be very much appreciated to receive the answer... thanks!
Etro —Preceding unsigned comment added by 151.196.108.226 ( talk) 17:55, 4 October 2007 (UTC)
x×.8=4032 —Preceding unsigned comment added by 71.225.135.106 ( talk) 19:03, 4 October 2007 (UTC)
I expect i'm asking a question which Wikipedia already has an article for, but i'll ask anyway as i can't find one;
(also, should this be in computing or mathematics?)
With Traveling Salesman computation i was thinking about reducing the time of computation by counting the length of an in-construction path as we go (with each added edge) and if the length of path is greater than the current best upper band at that time abandoning the unfinished path - But is it quicker to do it this way (assuming time to calculate length of path increases with increase to the path size) and removing 'over' paths as we go than computing the length only when the path is complete and deciding if the path is shorter - Also at with how many vertices would one system become faster than the other surely as the number of vertices increases so does the calculation time of the first method but so does the possible gain of not having to construct full paths?
Maybe i should start Differentiating?
Thanks!
- Benbread 19:18, 4 October 2007 (UTC)
Hi. There are probably different links for SHA-1, SHA-2, SHA-512, etc. The problem is, what exactly are those links? The Template:User committed identity gives the link to SHA-1, and the article gives the links to a few, but where are the links to all the SHA websites, say for example where is the link for calculating SHA-512? Can someone list me the links of those websites, and where you got it from? I don't want links to sites other than those used to directly calculate a string into a hash code, so I don't want any sites with info about the SHA websites, I want the actual links themselves. This question was originally from Talk:SHA hash functions. Thanks. ~ A H 1( T C U) 20:43, 4 October 2007 (UTC)
Does the function y = xx have any significance? Does it have a name? I've always found it a particularly intriguing function in the abstract, especially for –1 ≤ x ≤ 1. (Then there are the related functions y = (–x)x, y = x(–x), and y = (–x)(–x).) Thanks. — Michael J 05:21, 5 October 2007 (UTC)
It arises in analyzing Exponentiation#Zero_to_the_zero_power.-- Mostargue 11:02, 5 October 2007 (UTC)
It can be written using tetration: y=2x Alpha Omicron 15:21, 5 October 2007 (UTC)