Variable - Revision history

1990'sguy: Reverted edits by Normaljoe (talk) to last revision by DavidB4-bot

2017-09-07T02:47:54Z

Reverted edits by Normaljoe (talk) to last revision by DavidB4-bot

Normaljoe at 02:45, September 7, 2017

2017-09-07T02:45:05Z

DavidB4-bot: /* top */clean up & uniformity

2016-07-13T21:19:18Z

top: clean up & uniformity

KevinS: removed link redirecting to this same article

2008-12-21T12:24:51Z

removed link redirecting to this same article

Ed Poor at 12:12, December 21, 2008

2008-12-21T12:12:22Z

Ed Poor: an example for 99% of the readers who will come to this page

2008-12-21T12:11:51Z

an example for 99% of the readers who will come to this page

TankutO: addition

2008-10-04T15:47:59Z

addition

Jaques at 19:49, May 14, 2007

2007-05-14T19:49:20Z

Fantomas at 19:21, May 14, 2007

2007-05-14T19:21:50Z

Fantomas: New page: In mathematics, a variable is a value which usually is the subject or part of a function and must be subject to change while not affecting the structure behind the function in which it...

2007-05-14T19:21:30Z

New page: In mathematics, a variable is a value which usually is the subject or part of a function and must be subject to change while not affecting the structure behind the function in which it...

New page

In mathematics, a variable is a value which usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.

For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>. Further, <math>f(1,2)=(1)^{2}+3(2)=1+6=7</math>. We change the variable and thus alter the value of the function.

The [[set]] of all variables upon which a function acts is said to be the [[domain]]. The set of all values that a function can take due to its domain is called its [[range]].

@@ Line 1: / Line 1: @@
-Two trucks having sex
+In mathematics, a '''variable''' is a number whose value is not known. In basic arithmetic problems, the variable is typically the answer which the student must find:
-Two trucks having sex
+ Given:
-Two trucks having sex
++ x = 12
-My muscles, my muscles
-Involuntarily flex
+ Find x.
-TWO PICKUP TRUCKS
+Since 5 + 7 = 12, the answer is:
-Two trucks having sex (oh yes)
+ x = 7
-Two trucks, having sex (oh yes)
+A variable is usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.
-RIGHT BY MY SIDE
+For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>.
-Two trucks holding hands
+Further, <math>f(1,2)=(1)^{2}+3(2)=1+6=7</math>.  We change the variable and thus alter the value of the function.
-Two trucks holding hands
+Sometimes a function can have also a [[parameter]]. A parameter is similar to a variable, but is not written like a variable and is thus more similar to a [[constant]]. For example, if we a function: <math>f(x,y) = x^2 + ay</math>, then <math>a</math> is said to be a [[parameter]]. It does not change like the variables x and y, but it can nonetheless take different values. It is important to clearly distinguish the two concepts.
-TWO PICKUP TRUCKS
+The [[set]] of all variables upon which a function acts is said to be the [[domain]].  The set of all values that a function can take due to its domain is called its [[range]].
-ONE CYLINDER BLOCK
+[[Category:Mathematics]]

@@ Line 1: / Line 1: @@
-In mathematics, a '''variable''' is a number whose value is not known. In basic arithmetic problems, the variable is typically the answer which the student must find:
+Two trucks having sex
- Given:
+Two trucks having sex
-+ x = 12
+Two trucks having sex
+My muscles, my muscles
- Find x.
+Involuntarily flex
-Since 5 + 7 = 12, the answer is:
+TWO PICKUP TRUCKS
- x = 7
+Two trucks having sex (oh yes)
-A variable is usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.
+Two trucks, having sex (oh yes)
-For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>.
+RIGHT BY MY SIDE
-Further, <math>f(1,2)=(1)^{2}+3(2)=1+6=7</math>.  We change the variable and thus alter the value of the function.
+Two trucks holding hands
-Sometimes a function can have also a [[parameter]]. A parameter is similar to a variable, but is not written like a variable and is thus more similar to a [[constant]]. For example, if we a function: <math>f(x,y) = x^2 + ay</math>, then <math>a</math> is said to be a [[parameter]]. It does not change like the variables x and y, but it can nonetheless take different values. It is important to clearly distinguish the two concepts.
+Two trucks holding hands
-The [[set]] of all variables upon which a function acts is said to be the [[domain]].  The set of all values that a function can take due to its domain is called its [[range]].
+TWO PICKUP TRUCKS
-[[Category:Mathematics]]
+ONE CYLINDER BLOCK

← Older revision		Revision as of 21:19, July 13, 2016
Line 19:		Line 19:

	The [[set]] of all variables upon which a function acts is said to be the [[domain]]. The set of all values that a function can take due to its domain is called its [[range]].		The [[set]] of all variables upon which a function acts is said to be the [[domain]]. The set of all values that a function can take due to its domain is called its [[range]].
−	[[~~category~~:~~mathematics~~]]	+	[[Category:Mathematics]]

@@ Line 16: / Line 16: @@
 Further, <math>f(1,2)=(1)^{2}+3(2)=1+6=7</math>.  We change the variable and thus alter the value of the function.
-Sometimes a function can have also a [[parameter]]. A parameter is similar to a variable, but is not written like a variable and is thus more similar to a [[constant]]. For example, if we a function: <math>f(x,y) = x^2 + ay</math>, then <math>a</math> is said to be a [[parameter]]. It does not change like the [[variables]] x and y, but it can nonetheless take different values. It is important to clearly distinguish the two concepts.
+Sometimes a function can have also a [[parameter]]. A parameter is similar to a variable, but is not written like a variable and is thus more similar to a [[constant]]. For example, if we a function: <math>f(x,y) = x^2 + ay</math>, then <math>a</math> is said to be a [[parameter]]. It does not change like the variables x and y, but it can nonetheless take different values. It is important to clearly distinguish the two concepts.
 The [[set]] of all variables upon which a function acts is said to be the [[domain]].  The set of all values that a function can take due to its domain is called its [[range]].
 [[category:mathematics]]

@@ Line 10: / Line 10: @@
   x = 7
-A variable is a value which usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.
+A variable is usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.
 For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>.

← Older revision		Revision as of 12:11, December 21, 2008
Line 1:		Line 1:
−	In mathematics, a variable is a value which usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.	+	In mathematics, a '''variable''' is a number whose value is not known. In basic arithmetic problems, the variable is typically the answer which the student must find:
		+
		+	Given:
		+	5 + x = 12
		+
		+	Find x.
		+
		+	Since 5 + 7 = 12, the answer is:
		+
		+	x = 7
		+
		+	A variable is a value which usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts.

	For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>.		For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>.

← Older revision		Revision as of 19:49, May 14, 2007
Line 6:		Line 6:

	The [[set]] of all variables upon which a function acts is said to be the [[domain]]. The set of all values that a function can take due to its domain is called its [[range]].		The [[set]] of all variables upon which a function acts is said to be the [[domain]]. The set of all values that a function can take due to its domain is called its [[range]].
		+	[[category:mathematics]]