User contributions for Gamma
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5 February 2009
- 20:4220:42, 5 February 2009 diff hist +35 Euler Triangle Formula →Proof (Theorem)
- 20:4020:40, 5 February 2009 diff hist +7 Euler Triangle Formula →Proof (Theorem)
- 20:3920:39, 5 February 2009 diff hist +13 Euler Triangle Formula →Theorem
- 20:3820:38, 5 February 2009 diff hist +34 Euler Triangle Formula No edit summary
- 20:3720:37, 5 February 2009 diff hist +13 Euler Triangle Formula →Proof (Theorem)
- 20:3720:37, 5 February 2009 diff hist +1,719 N Euler Triangle Formula New page: == Theorem == d=OI,the istance between incentre and circuncenter of some triangle. Then <math>d^2=R(R-2 \rho)</math>,where, R and \rho are the circunradius and inradii(?) == Proof == =...
- 18:3318:33, 5 February 2009 diff hist 0 N File:EulerTriangleLemma.png No edit summary
- 02:0102:01, 5 February 2009 diff hist 0 N File:Tri1.PNG No edit summary current
26 January 2009
- 03:4003:40, 26 January 2009 diff hist +145 Talk:Series of Power over Factorial Converges No edit summary
- 00:3900:39, 26 January 2009 diff hist +336 N Talk:Series of Power over Factorial Converges New page: let me ask something How did you know that <math>\frac {\left|{x}\right|} {n+1} \to 0</math> as <math>n \to \infty</math>?? if x can be any real number... maybe exist some real number...
7 January 2009
- 23:0723:07, 7 January 2009 diff hist +192 Talk:Main Page No edit summary
5 January 2009
1 January 2009
- 17:0617:06, 1 January 2009 diff hist +4 Median Formula →Theorem
- 14:5414:54, 1 January 2009 diff hist +147 Area of Triangle in Terms of Side and Altitude →Proof
- 14:4914:49, 1 January 2009 diff hist +59 Law of Sines No edit summary
- 14:4614:46, 1 January 2009 diff hist +1,058 N Law of Sines New page: == Theorem == <math> \frac{a}{\sin \alpha} = \frac{b}{\sin \beta} = \frac{c}{\sin \gamma}= 2R</math> Where <math>a</math>,<math>b</math> and <math>c</math> are the side the triangle <mat...
- 13:5213:52, 1 January 2009 diff hist 0 File:Area-of-Triangle.png uploaded a new version of "Image:Tri.PNG"
- 12:4212:42, 1 January 2009 diff hist +13 Length of Angle Bisector →Proof 2
- 04:0904:09, 1 January 2009 diff hist 0 Intersecting Chords Theorem No edit summary
- 00:2900:29, 1 January 2009 diff hist +750 N Intersecting Chords Theorem New page: == Theorem == The chord theorem states that if two chords, <math>CD</math> and <math>EF</math>, intersect at <math>A</math>, then <math>CA \cdot AD = EA \cdot AF </math> == Proof == Join...
- 00:0800:08, 1 January 2009 diff hist +1,377 Law of Cosines →Proof
31 December 2008
- 23:4823:48, 31 December 2008 diff hist −2 Length of Angle Bisector →Proof 2
- 23:4123:41, 31 December 2008 diff hist −1 Length of Angle Bisector →Proof 2
- 23:1523:15, 31 December 2008 diff hist +128 User talk:Joe →Geometry euclidian or analytic ?
- 22:4322:43, 31 December 2008 diff hist +284 User talk:Joe No edit summary
- 18:1218:12, 31 December 2008 diff hist +34 Length of Angle Bisector No edit summary
- 18:1118:11, 31 December 2008 diff hist +3,088 N Length of Angle Bisector New page: == Theorem == Length of bisectors <math>b_\alpha^2=\dfrac{cb}{(c+b)^2}[(c+b)^2-a^2]</math> <math>b_\gamma^2=\dfrac{ab}{(a+b)^2}[(a+b)^2-c^2]</math> <math>b_\beta^2=\dfrac{ac}{(a+c)^2}[...
- 16:2416:24, 31 December 2008 diff hist +33 Median Formula →Proof
- 16:2116:21, 31 December 2008 diff hist +916 N Median Formula New page: == Theorem == the Length of medians is equal to <math>m_a^2=\dfrac{c^2}{2}+\dfrac{b^2}{2}-\dfrac{a^2}{4}</math> <math>m_b^2=\dfrac{c^2}{2}+\dfrac{a^2}{2}-\dfrac{b^2}{4}</math> <math>m_c...
- 16:0516:05, 31 December 2008 diff hist 0 Stewart's Theorem →Theorem
- 05:0205:02, 31 December 2008 diff hist +1,553 N Stewart's Theorem New page: == Theorem == Let a, b, c be the sides of a triangle. Let be any cevian from C to P them <math>a^2 \cdot AP+b^2 \cdot BP=CP^2 \cdot c+AP \cdot PB \cdot c</math> Image:Ste.PNG === P...
- 03:0703:07, 31 December 2008 diff hist +867 N Area of Triangle in Terms of Circumradius New page: == Theorem == The area of any triangle ABC is equal to <math>(ABC)=\dfrac{abc}{4r}</math> where <math>r</math> is the circunradius and <math>a,b</math> and <math>c</math> are side == Pro...
- 01:5201:52, 31 December 2008 diff hist +366 N User:Gamma New page: <math>\Gamma(z) = \int_0^\infty t^{z-1} e^{-t}\,dt</math> <math> \begin{align} \Gamma(z) &= \lim_{n \to \infty} \frac{n! \; n^z}{z \; (z+1)\cdots(z+n)} = \frac{1}{z} \prod_{n=1}^\i...
- 01:4601:46, 31 December 2008 diff hist +52 User talk:Gamma →Hello?
- 01:4001:40, 31 December 2008 diff hist +15 Area of Triangle in Terms of Inradius and Exradii →Theorem
- 01:3201:32, 31 December 2008 diff hist +33 Area of Triangle in Terms of Inradius and Exradii No edit summary
- 01:2801:28, 31 December 2008 diff hist +2,263 N Area of Triangle in Terms of Inradius and Exradii New page: == Theorem == The area of any triangle ABC is equal to <math>(ABC) = \rho_a(s-a)=\rho_b(s-b)=\rho_c(s-c)=\rho s = \sqrt{\rho_a\rho_b\rho_c\rho} \,\!</math> where s is the semiperimeter an...
30 December 2008
- 22:3222:32, 30 December 2008 diff hist −7 Area of Parallelogram →Rectangle
- 16:5316:53, 30 December 2008 diff hist +1,972 N Area of Parallelogram New page: == Theorem == The area of a Parallelogram,in general, the product of one of its bases and the associated altitude. == Proof == We will analize the four cases of a parallelogram that are sq...
- 16:2316:23, 30 December 2008 diff hist 0 N File:Area-of-Parallelogram.png No edit summary
- 15:3215:32, 30 December 2008 diff hist 0 N File:Area-of-Rectangle.png No edit summary
- 02:0202:02, 30 December 2008 diff hist +691 N Area of Triangle in Terms of Side and Altitude New page: == Theorem == The area of a triangle ABC is equal <math>\dfrac{ch_c}{2}=\dfrac{bh_b}{2}=\dfrac{ah_a}{2}</math> where a,b,and c are side ande <math>h_b,h_a</math> and <math>h_c</math> ar...
- 02:0102:01, 30 December 2008 diff hist +269 User talk:Joe No edit summary
- 01:4901:49, 30 December 2008 diff hist +39 User talk:Gamma No edit summary
- 01:2801:28, 30 December 2008 diff hist 0 N File:Area-of-Triangle.png No edit summary
28 December 2008
- 23:0423:04, 28 December 2008 diff hist +946 Pythagoras's Theorem →Proof