User contributions for Irchans
A user with 64 edits. Account created on 7 April 2006.
3 February 2024
- 04:4204:42, 3 February 2024 diff hist +4 User:Irchans No edit summary current
- 04:4204:42, 3 February 2024 diff hist +69 User:Irchans No edit summary
- 04:4004:40, 3 February 2024 diff hist +122 User:Irchans No edit summary
- 04:3504:35, 3 February 2024 diff hist +495 Talk:Cribbage statistics No edit summary current
20 September 2023
- 13:5413:54, 20 September 2023 diff hist 0 m Intermediate value theorem →Theorem: I changed the comma at the end of the Version II sentence into a period.
18 January 2023
- 19:3919:39, 18 January 2023 diff hist +485 Talk:Intermediate value theorem Follow up on AVM2019 comment.
1 August 2022
- 17:3717:37, 1 August 2022 diff hist +52 Standard deviation →Corrected sample standard deviation: Added a short explanation of "square root is a not linear function which does not commute with expectation". See talk page.
1 January 2022
- 16:4416:44, 1 January 2022 diff hist +11 m Dottie number Made the parentheses around pi/180 x larger.
15 December 2021
- 12:0612:06, 15 December 2021 diff hist +77 N User:Irchans ←Created page with 'I have degrees in math, computer science, and engineering -- a Ph.D. in math.'
- 00:4700:47, 15 December 2021 diff hist +45 Talk:Dottie number →Adding more digits
14 December 2021
- 23:4923:49, 14 December 2021 diff hist +268 Talk:Dottie number Asking if we should put more digits in the answer.
- 22:1622:16, 14 December 2021 diff hist +854 Talk:Standard deviation No edit summary
25 November 2021
- 14:0114:01, 25 November 2021 diff hist +4 m Uniform integrability →Measure-theoretic definition: Added link to measure space Wikipedia page
- 13:5513:55, 25 November 2021 diff hist +4 m Vitali convergence theorem →Preliminary definitions: Added a link to the Measure Space Wikipedia page
22 November 2021
- 00:1800:18, 22 November 2021 diff hist +20 Hardy space →Hardy spaces for the upper half plane: Added limits to the integral in the definition of the norm for the Hardy Space for the upper half-plane.
27 September 2020
- 17:5217:52, 27 September 2020 diff hist +278 Dan Falk No edit summary
24 December 2019
- 13:1113:11, 24 December 2019 diff hist +12 Kahan summation algorithm I changed "independent of n" to "effectively independent of n". Using double precision, the error does not grow above the machine error 10^(-16) unless n>10^15. See talk page.
4 October 2019
- 04:4804:48, 4 October 2019 diff hist 0 Modern portfolio theory →Risk and expected return: There was an obvious error. The passage stated "The exact trade-off will be the same for all investors". I inserted the word "not" to correct the error.
14 August 2019
- 01:5501:55, 14 August 2019 diff hist +10 Rank–nullity theorem →Stating the theorem: Added Parentheses for Clarity.
19 May 2019
- 02:0602:06, 19 May 2019 diff hist 0 Hohmann transfer orbit →Calculation: The denominator for potential energy in the first formula should be r , not a . The formula was correct in all the versions that I looked at before Feb 2019.
23 October 2018
- 18:5918:59, 23 October 2018 diff hist +158 Pedro Domingos →Biography
17 October 2018
- 18:2518:25, 17 October 2018 diff hist +4 m Primitive root modulo n Just italicized the variable n in the introduction
26 April 2018
- 15:2015:20, 26 April 2018 diff hist +185 m Semidefinite programming →Initial motivation: Just stated that the a_ijk, b_k, and the c_ij are real and changed the for all symbol into the words "for all".
- 15:0815:08, 26 April 2018 diff hist 0 Semidefinite programming →Equivalent formulations: Capitalized Gramian.
4 April 2018
- 16:1116:11, 4 April 2018 diff hist −3 Talk:Locally convex topological vector space →Non-standard definition of Cone
- 16:1016:10, 4 April 2018 diff hist +245 Talk:Locally convex topological vector space Elaborated some more.
- 15:5515:55, 4 April 2018 diff hist +26 Talk:Locally convex topological vector space →Non-standard definition of Cone: Added my name and today's date.
- 15:5415:54, 4 April 2018 diff hist +431 Talk:Locally convex topological vector space Added a criticism of the given definition of cones.
26 February 2018
- 18:5518:55, 26 February 2018 diff hist +1 Diagram (category theory) →Definition: Added a period to the first sentence.
26 December 2017
- 16:4716:47, 26 December 2017 diff hist +25 Program slicing →Example: added "and the declaration of i" to the sentence that describes how to make the slice executable
- 16:4416:44, 26 December 2017 diff hist +4 Program slicing →Example: fixed copying error in "new program"
25 December 2017
- 20:0120:01, 25 December 2017 diff hist +1,588 Program slicing →Static slicing
16 September 2017
- 17:2117:21, 16 September 2017 diff hist +16 File:Ngc 136.jpg →Summary: Just giving permission to anyone to copy the image current
- 17:1917:19, 16 September 2017 diff hist +27 NGC 136 Added the image
4 August 2017
- 11:1511:15, 4 August 2017 diff hist 0 Von Mises distribution →Limiting behavior: Fixed position of period
3 August 2017
- 14:3214:32, 3 August 2017 diff hist +252 Talk:Hoeffding's inequality →Hoeffding's theorem 2
- 14:1814:18, 3 August 2017 diff hist +61 Hoeffding's inequality →General case: The bounds for t where not stated in the article, so I added the bounds for t from Hoeffding's paper to the article. (Without those bounds for t the theorem is false.)
21 June 2017
- 15:5115:51, 21 June 2017 diff hist +2 m Quadratic unconstrained binary optimization Made curly braces for {0,1} visible
- 15:4915:49, 21 June 2017 diff hist −1 m Quadratic unconstrained binary optimization Removed "s" from quadratics
- 15:4815:48, 21 June 2017 diff hist +109 Quadratic unconstrained binary optimization Fixed second summation in formula and made the preceding sentence more understandable.
3 June 2017
- 14:2814:28, 3 June 2017 diff hist +34 Von Mises distribution →Limiting behavior: added the word "uniformly" to indicate that the maximum difference converges to zero
31 May 2017
- 17:1817:18, 31 May 2017 diff hist +15 Von Mises distribution →Entropy
- 17:1617:16, 31 May 2017 diff hist −12 Von Mises distribution →Entropy: We can't use the phrase "defined as" because the formula given is the correct formula for the entropy of any distribution over theta with parameters k and mu.
- 17:1017:10, 31 May 2017 diff hist +384 Von Mises distribution →Limiting behavior: I fixed the formula which was technically wrong. You can't write limit_k->\infty f(x,k) = g(x,k) because the k on the left is bound to the limit operator. I also cleaned up some the english and included the definition of U.
- 16:4616:46, 31 May 2017 diff hist +51 Talk:Von Mises distribution →Limiting behavior
6 February 2009
- 22:2922:29, 6 February 2009 diff hist +268 Messier 13 Added mass and reference
1 August 2008
- 09:5009:50, 1 August 2008 diff hist +151 Hardy–Ramanujan theorem Tried to define "infinitesimal proportion".
- 09:4409:44, 1 August 2008 diff hist +26 Hardy–Ramanujan theorem Changed statement to make clear that psi(n) is any real-valued function.
27 May 2008
- 10:0210:02, 27 May 2008 diff hist +1 m Permanent (mathematics) →Definition: Fixed link to Laplace's Expansion
10 May 2008
- 23:3323:33, 10 May 2008 diff hist +9 m Beta Canis Majoris put the vord variable before the word magnitude
