TI-BASIC:Sum Of Matrix - Revision history

Maintenance script: Automated internal link correction

2016-02-24T23:22:04Z

Automated internal link correction

← Older revision		Revision as of 23:22, 24 February 2016
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	The [[TI-BASIC:Cumsum\|CumSum(]] command gets the cumulative sum of each column in the [[TI-BASIC:Matrices\|matrix]], adding the value of the previous element to the next element, and repeating this for each consecutive element in the column. When the cumSum( command is finished, the last element in each column will contain the sum of that column. Taking the <sup>[[TI-BASIC:Transpose\|T]]</sup> (transpose) of the resulting matrix switches columns and rows.		The [[TI-BASIC:Cumsum\|CumSum(]] command gets the cumulative sum of each column in the [[TI-BASIC:Matrices\|matrix]], adding the value of the previous element to the next element, and repeating this for each consecutive element in the column. When the cumSum( command is finished, the last element in each column will contain the sum of that column. Taking the <sup>[[TI-BASIC:Transpose\|T]]</sup> (transpose) of the resulting matrix switches columns and rows.

	Then, using the [[TI-BASIC:~~Matr►list(~~\|Matr►list(]] command, the last column of this result is stored to L₁. This column was originally the last row of cumSum('s output, so it contains all the column sums. Finally, by calculating the sum of that list, we get the total of the matrix elements. L₁ is no longer necessary, and can be deleted.		Then, using the [[TI-BASIC:Matr_List\|Matr►list(]] command, the last column of this result is stored to L₁. This column was originally the last row of cumSum('s output, so it contains all the column sums. Finally, by calculating the sum of that list, we get the total of the matrix elements. L₁ is no longer necessary, and can be deleted.

	If you want to use the sum for future use, you can store it to a more permanent variable, such as A or X. When you are done using [A], you should [[TI-BASIC:Cleanup\|clean it up]] at the end of your program.[[Category:TI-BASIC]]		If you want to use the sum for future use, you can store it to a more permanent variable, such as A or X. When you are done using [A], you should [[TI-BASIC:Cleanup\|clean it up]] at the end of your program.[[Category:TI-BASIC]]
	[[Category:TIBD]]		[[Category:TIBD]]

Maintenance script: Automated superscript correction

2016-02-24T22:25:06Z

Automated superscript correction

← Older revision		Revision as of 22:25, 24 February 2016
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	{{Template:TI-BASIC:Prgm-code		{{Template:TI-BASIC:Prgm-code
	\|code=:dim([A]		\|code=:dim([A]
	:Matr►list(cumSum([A])^^T^^,Ans(1),L,,1,,		:Matr►list(cumSum([A])<sup>T</sup>,Ans(1),L,,1,,
	:sum(L,,1,,		:sum(L,,1,,
	}}		}}

	The [[TI-BASIC:Cumsum\|CumSum(]] command gets the cumulative sum of each column in the [[TI-BASIC:Matrices\|matrix]], adding the value of the previous element to the next element, and repeating this for each consecutive element in the column. When the cumSum( command is finished, the last element in each column will contain the sum of that column. Taking the ^^[[TI-BASIC:Transpose\|T]]^^ (transpose) of the resulting matrix switches columns and rows.		The [[TI-BASIC:Cumsum\|CumSum(]] command gets the cumulative sum of each column in the [[TI-BASIC:Matrices\|matrix]], adding the value of the previous element to the next element, and repeating this for each consecutive element in the column. When the cumSum( command is finished, the last element in each column will contain the sum of that column. Taking the <sup>[[TI-BASIC:Transpose\|T]]</sup> (transpose) of the resulting matrix switches columns and rows.

	Then, using the [[TI-BASIC:Matr►list(\|Matr►list(]] command, the last column of this result is stored to L₁. This column was originally the last row of cumSum('s output, so it contains all the column sums. Finally, by calculating the sum of that list, we get the total of the matrix elements. L₁ is no longer necessary, and can be deleted.		Then, using the [[TI-BASIC:Matr►list(\|Matr►list(]] command, the last column of this result is stored to L₁. This column was originally the last row of cumSum('s output, so it contains all the column sums. Finally, by calculating the sum of that list, we get the total of the matrix elements. L₁ is no longer necessary, and can be deleted.

Maintenance script: Automated @@ correction

2016-02-24T22:11:47Z

Automated @@ correction

← Older revision		Revision as of 22:11, 24 February 2016
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	{{Template:TI-BASIC:Routine		{{Template:TI-BASIC:Routine
	\|picture=@@		\|picture=
	\|summary=Returns the sum of the elements of a matrix.		\|summary=Returns the sum of the elements of a matrix.
	\|input=''[A]'' - the matrix whose elements you want to sum		\|input=''[A]'' - the matrix whose elements you want to sum
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	\|compatibility=TI-83/84/+/SE		\|compatibility=TI-83/84/+/SE
	\|author=zada		\|author=zada
	\|authors=@@		\|authors=
	\|url=http://www.unitedti.org/index.php?showtopic=7475&view=findpost&p=117106 United TI		\|url=http://www.unitedti.org/index.php?showtopic=7475&view=findpost&p=117106 United TI
	\|download=[file sumofmatrix.zip]		\|download=[file sumofmatrix.zip]

Maintenance script: Initial automated import

2016-02-24T18:30:36Z

Initial automated import

New page

{{Template:TI-BASIC:Routine
|picture=@@
|summary=Returns the sum of the elements of a matrix.
|input=''[A]'' - the matrix whose elements you want to sum
|output=''Ans'' - the sum of the matrix elements
|variable=[A], L₁, Ans
|compatibility=TI-83/84/+/SE
|author=zada
|authors=@@
|url=http://www.unitedti.org/index.php?showtopic=7475&view=findpost&p=117106 United TI
|download=[file sumofmatrix.zip]
}}

{{Template:TI-BASIC:Prgm-code
|code=:dim([A]
:Matr►list(cumSum([A])^^T^^,Ans(1),L,,1,,
:sum(L,,1,,
}}

The [[TI-BASIC:Cumsum|CumSum(]] command gets the cumulative sum of each column in the [[TI-BASIC:Matrices|matrix]], adding the value of the previous element to the next element, and repeating this for each consecutive element in the column. When the cumSum( command is finished, the last element in each column will contain the sum of that column. Taking the ^^[[TI-BASIC:Transpose|T]]^^ (transpose) of the resulting matrix switches columns and rows.

Then, using the [[TI-BASIC:Matr►list(|Matr►list(]] command, the last column of this result is stored to L₁. This column was originally the last row of cumSum('s output, so it contains all the column sums. Finally, by calculating the sum of that list, we get the total of the matrix elements. L₁ is no longer necessary, and can be deleted.

If you want to use the sum for future use, you can store it to a more permanent variable, such as A or X. When you are done using [A], you should [[TI-BASIC:Cleanup|clean it up]] at the end of your program.[[Category:TI-BASIC]]
[[Category:TIBD]]