Mathematics - Recent changes [en]

User talk:114.108.229.181

Wikia — Wed, 25 Nov 2009 00:30:04 GMT

welcoming new contributor

New page

==Welcome==
Hi, welcome to Mathematics. Thanks for your edit to the [[:Analytic geometry]] page.

'''[[Special:Userlogin|Please sign in and create a user name]]'''. It's an easy way to keep track of your contributions and helps you communicate with the rest of the community.

Please leave a message on [[User talk:Dcljr|my talk page]] if I can help with anything! -- [[User:Dcljr|Dcljr]] ([[User_talk:Dcljr|Talk]]) 00:30, November 25, 2009

Analytic geometry

114.108.229.181 — Wed, 25 Nov 2009 00:29:45 GMT

← Older revision		Revision as of 00:29, November 25, 2009
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-	'''Analytic geometry''' is a branch of [[mathematics]] which study [[geometry]] using [[cartesian coordinates]] or	+	'''Analytic geometry''' is a branch of [[mathematics]] which study [[geometry]] using [[cartesian coordinates]] (polar coordinates) or
	''valid'' [[transformation of coordinates]] in the description of geometric shapes.		''valid'' [[transformation of coordinates]] in the description of geometric shapes.

Line 5:		Line 5:


-	In the figure we can see how a point in 3-space is described in polar coordinates and the transformation form polar to euclidean is	+	In the figure we can see how a point in 3-space is described in polar coordinates and the transformation from polar coordinates to euclidean is
-	::<math>x=r\cos(\varphi)</math>	+	::<math>x=r\cos(\varphi)</math>
-	::<math>y=r\sin(\varphi)</math>	+	::<math>y=r\sin(\varphi)</math>
	::<math>z=r\cos(\theta)</math>		::<math>z=r\cos(\theta)</math>

User talk:83.38.102.105

Wikia — Tue, 24 Nov 2009 20:47:03 GMT

welcoming new contributor

New page

==Welcome==
Hi, welcome to Mathematics. Thanks for your edit to the [[:Analytic algebra]] page.

'''[[Special:Userlogin|Please sign in and create a user name]]'''. It's an easy way to keep track of your contributions and helps you communicate with the rest of the community.

Please leave a message on [[User talk:Dcljr|my talk page]] if I can help with anything! -- [[User:Dcljr|Dcljr]] ([[User_talk:Dcljr|Talk]]) 20:47, November 24, 2009

Analytic algebra

83.38.102.105 — Tue, 24 Nov 2009 20:46:15 GMT

Created page with 'fff'

New page

fff

User talk:129.67.127.65

Wikia — Sat, 21 Nov 2009 15:21:03 GMT

welcoming new contributor

New page

==Welcome==
Hi, welcome to Mathematics. Thanks for your edit to the [[:Least upper bound]] page.

'''[[Special:Userlogin|Please sign in and create a user name]]'''. It's an easy way to keep track of your contributions and helps you communicate with the rest of the community.

Please leave a message on [[User talk:Dcljr|my talk page]] if I can help with anything! -- [[User:Dcljr|Dcljr]] ([[User_talk:Dcljr|Talk]]) 15:21, November 21, 2009

Least upper bound

129.67.127.65 — Sat, 21 Nov 2009 15:20:45 GMT

Created page with 'L is a least upper bound of a set S iff for all x in S x<L and L is the lowest such number. It is also called A supremum.'

New page

L is a least upper bound of a set S iff for all x in S x<L and L is the lowest such number. It is also called A supremum.

Pre-algebra

Dcljr — Sat, 21 Nov 2009 08:50:18 GMT

as usual, in attempting to make thing easier, they've just made it harder....

New page

'''Pre-algebra''' is the name given to [[mathematics course]]s typically taught at the end of [[elementary school]] or the beginning of [[secondary school]], before formal study of [[elementary algebra]] begins. Such courses typically include the following subject areas:
# [[Negative number]]s
# [[Factoring numbers]]
# [[Fraction]]s, [[rational numbers]], [[decimal number]]s and [[percent]]s
# [[Exponent]]s, [[power]]s and [[root]]s
# [[Properties of arithmetic operations]]
# [[Order of operations]] and [[variable]] expressions
# [[Solving simple equations]]
# The [[real number line]]
# [[Inequalities]]
# Basic ideas of [[data analysis]] and [[elementary probability]]
# [[Perimeter]], [[area]] and [[volume]] of simple [[geometric shape]]s
[[Category:Secondary school mathematics]]
[[Category:Elementary school mathematics]]

Mathematics:Topics by level

Dcljr — Sat, 21 Nov 2009 08:16:08 GMT

unhide extand page

← Older revision		Revision as of 08:16, November 21, 2009
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	\| * [[Pre-algebra]]		\| * [[Pre-algebra]]
	</noinclude>\|-		</noinclude>\|-
-	\| <noinclude>* [[Fraction]]s and </noinclude>[[Percent]]s	+	\| [[Fraction]]s and [[percent]]s
	<noinclude>\|-		<noinclude>\|-
	\| * [[Chart]]s		\| * [[Chart]]s
Line 59:		Line 59:
	\| * [[Multivariable calculus]] or * [[Vector calculus]]		\| * [[Multivariable calculus]] or * [[Vector calculus]]
	</noinclude><noinclude>\|-		</noinclude><noinclude>\|-
-	\| * [[Advanced calculus]] or [[Introduction to real analysis]]	+	\| * [[Advanced calculus]] or * [[Introduction to real analysis]]
	</noinclude>		</noinclude>
	\|}<noinclude>		\|}<noinclude>

Trigonometry

198.209.42.9 — Wed, 18 Nov 2009 18:01:04 GMT

← Older revision		Revision as of 18:01, November 18, 2009
(One intermediate revision not shown)
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-	<strike>'''HIYA MOMMY!!!'''</strike>	+	'''Trigonometry''' (literally "[http://math.wikia.com/index.php?title=Measurement&action=edit&redlink=1 measurement] of [[Figure\|figures]] with three [[Angle\|angles]]") is the area of [[Mathematics\|mathematics]] that deals with relationships between the side [http://math.wikia.com/index.php?title=Length&action=edit&redlink=1 lengths] and angles of [[Triangle\|triangles]].
		+
		+	Although one can consider triangles on curved surfaces (using [http://math.wikia.com/index.php?title=Spherical_trigonometry&action=edit&redlink=1 spherical] and [http://math.wikia.com/index.php?title=Hyperbolic_trigonometry&action=edit&redlink=1 hyperbolic trigonometry]), the term ''trigonometry'' usually refers to '''planar trigonometry''' — that is, the study of triangles in a [[Plane\|plane]] (two-[http://math.wikia.com/index.php?title=Dimension&action=edit&redlink=1 dimensional] [[Euclidean space]]).
		+
		+	After considering the measurement of angles in [[Degree (angle)\|degrees]] and [[Radian\|radians]], one may define the following six basic [http://math.wikia.com/index.php?title=Trigonometric_function&action=edit&redlink=1 trigonometric functions] using any [[Right triangle\|right triangle]] containing a specified [http://math.wikia.com/index.php?title=Acute&action=edit&redlink=1 acute] angle [http://images.wikia.com/wikitex/images/d/d4/d4b/b2ae201279b17f0c0441bd64cd9051.png]:
		+
		+
		+	{\|
		+	\|
		+	*[http://images.wikia.com/wikitex/images/8/80/80f/7a7f334234b667b64b40dbf49ea6e1.png]
		+	*[http://images.wikia.com/wikitex/images/d/db/db8/d2b4d0b1763e445ff492c6473c5561.png]
		+	*[http://images.wikia.com/wikitex/images/4/40/40d/67fb47bb6eab12414abfb2ca4186a1.png]
		+	\|
		+	*[http://images.wikia.com/wikitex/images/2/25/25a/8ded52978bab4dff6c310611b587c1.png]
		+	*[http://images.wikia.com/wikitex/images/4/46/46f/58c8c6e44db9c598acc4bb19dd9f01.png]
		+	*[http://images.wikia.com/wikitex/images/f/fe/fe6/f962e7baa061c56f71969e89e13031.png]
		+	\|}
		+
		+	Here "opp" and "adj" represent, respectively, the lengths of the sides opposite and adjacent to the angle [http://images.wikia.com/wikitex/images/d/d4/d4b/b2ae201279b17f0c0441bd64cd9051.png], and "hyp" represents the length of the [[Hypotenuse\|hypotenuse]] (the side opposite the [[Right angle\|right angle]]).
		+
		+	The names of the functions above are abbreviated forms of the words [http://math.wikia.com/index.php?title=Sine&action=edit&redlink=1 sine], [http://math.wikia.com/index.php?title=Cosine&action=edit&redlink=1 cosine], [http://math.wikia.com/index.php?title=Tangent&action=edit&redlink=1 tangent], [http://math.wikia.com/index.php?title=Cotangent&action=edit&redlink=1 cotangent], [http://math.wikia.com/index.php?title=Secant&action=edit&redlink=1 secant] and [http://math.wikia.com/index.php?title=Cosecant&action=edit&redlink=1 cosecant].
		+
		+	The values of these six functions for non-acute angles (less than or equal to [[Zero\|zero]], or greater than a right angle) can be found by reference to the '''[[Unit circle\|unit circle]]'''.
		+
		+	There are many properties of these functions that are true for any given angle. The most fundamental of these are:
		+	*[http://images.wikia.com/wikitex/images/5/59/593/f3ddd443e3c2ada732d01af4432571.png]
		+	*[http://images.wikia.com/wikitex/images/e/e5/e5a/c5944edf13f6779230987b5d5b25a1.png]
		+	*[http://images.wikia.com/wikitex/images/1/18/186/a3e1f20b7e37276f12b2cf00a10201.png]
		+	*[http://images.wikia.com/wikitex/images/0/0c/0c1/a0f564f9ca372d5fa51b134193d811.png]
		+	*[http://images.wikia.com/wikitex/images/0/0f/0f6/b980bcef0854f719a3cb58d466bc41.png]
		+

	For other similar properties, see our [[list of trigonometric identities]].		For other similar properties, see our [[list of trigonometric identities]].

User talk:198.209.42.9

Wikia — Wed, 18 Nov 2009 17:56:11 GMT

welcoming new contributor

New page

==Welcome==
Hi, welcome to Mathematics. Thanks for your edit to the [[:Trigonometry]] page.

'''[[Special:Userlogin|Please sign in and create a user name]]'''. It's an easy way to keep track of your contributions and helps you communicate with the rest of the community.

Please leave a message on [[User talk:Koisuru|my talk page]] if I can help with anything! -- [[User:Koisuru|Koisuru]] ([[User_talk:Koisuru|Talk]]) 17:56, November 18, 2009

Trigonometry

198.209.42.9 — Wed, 18 Nov 2009 17:55:38 GMT

← Older revision		Revision as of 17:55, November 18, 2009
Line 1:		Line 1:
-	{{wikipedia}}	+	<strike>'''HIYA MOMMY!!!'''</strike>
-	'''Trigonometry''' (literally "[[measurement]] of [[figure]]s with three [[angle]]s") is the area of [[mathematics]] that deals with relationships between the side [[length]]s and angles of [[triangle]]s.
-
-	Although one can consider triangles on curved surfaces (using [[spherical trigonometry\|spherical]] and [[hyperbolic trigonometry]]), the term ''trigonometry'' usually refers to '''planar trigonometry''' — that is, the study of triangles in a [[plane]] (two-[[dimension]]al [[Euclidean space]]).
-
-	After considering the measurement of angles in [[degree (angle)\|degree]]s and [[radian]]s, one may define the following six basic [[trigonometric function]]s using any [[right triangle]] containing a specified [[acute]] angle <math>\theta</math>:
-	{\|
-	\|
-	* <math>\sin\theta=\frac{\mbox{opp}}{\mbox{hyp}}</math>
-	* <math>\cos\theta=\frac{\mbox{adj}}{\mbox{hyp}}</math>
-	* <math>\tan\theta=\frac{\mbox{opp}}{\mbox{adj}}</math>
-	\|
-	* <math>\csc\theta=\frac{\mbox{hyp}}{\mbox{opp}}</math>
-	* <math>\sec\theta=\frac{\mbox{hyp}}{\mbox{adj}}</math>
-	* <math>\cot\theta=\frac{\mbox{adj}}{\mbox{opp}}</math>
-	\|}
-	Here "opp" and "adj" represent, respectively, the lengths of the sides opposite and adjacent to the angle <math>\theta</math>, and "hyp" represents the length of the [[hypotenuse]] (the side opposite the [[right angle]]).
-
-	The names of the functions above are abbreviated forms of the words [[sine]], [[cosine]], [[tangent]], [[cotangent]], [[secant]] and [[cosecant]].
-
-	The values of these six functions for non-acute angles (less than or equal to [[zero]], or greater than a right angle) can be found by reference to the '''[[unit circle]]'''.
-
-	There are many properties of these functions that are true for any given angle. The most fundamental of these are:
-
-	* <math>\tan\theta=\frac{\sin\theta}{\cos\theta}</math>
-
-	* <math>\cot\theta=\frac{\cos\theta}{\sin\theta}= \frac{1}{\tan\theta}</math>
-
-	* <math>\sec\theta=\frac{1}{\cos\theta}</math>
-
-	* <math>\csc\theta=\frac{1}{\sin\theta}</math>
-
-	* <math>\sin^2\theta+\cos^2\theta=1</math>

	For other similar properties, see our [[list of trigonometric identities]].		For other similar properties, see our [[list of trigonometric identities]].