Difference between revisions of "LeftSum Command"

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m (Text replace - "<div class="box info"> 48px|left This page is part of the official manual for print and pdf. For structural reasons normal users can't edit this page. If you found any errors on this page please contact )
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<noinclude>{{Manual Page|version=4.2}}</noinclude>
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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|function}}
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;LeftSum( <Function>, <Start x-Value>, <End x-Value>, <Number of Rectangles> )
;LeftSum[ <Function>, <Start x-Value>, <End x-Value>, <Number of Rectangles> ]
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:Calculates the left sum of the function in the interval using ''n'' rectangles.
:Calculates the left sum of the function in the interval [''a, b''] using ''n'' rectangles.
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:{{example|1=<code><nowiki>LeftSum(x^2 + 1, 0, 2, 4)</nowiki></code> yields ''a'' = 3.75}}
:{{example|1=<code><nowiki>LeftSum[x^2 + 1, 0, 2, 4]</nowiki></code> yields ''a'' = 3.75}}
 
 
:{{Notes|1=<br>
 
:{{Notes|1=<br>
 
:*This command draws the rectangles of the left sum as well.
 
:*This command draws the rectangles of the left sum as well.
:*See also the commands: [[RectangleSum Command|RectangleSum]], [[TrapezoidalSum Command|TrapezoidalSum]], [[LowerSum Command|LowerSum]] and [[UpperSum Command|UpperSum]]}}
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:*This command is designed as a visual aid so won't give accurate answers if the number of rectangles is too large.
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:*See also the commands: [[RectangleSum Command|RectangleSum]], [[TrapezoidalSum Command|TrapezoidalSum]], [[LowerSum Command|LowerSum]] and [[UpperSum Command|UpperSum]].}}

Latest revision as of 14:27, 17 November 2017


LeftSum( <Function>, <Start x-Value>, <End x-Value>, <Number of Rectangles> )
Calculates the left sum of the function in the interval using n rectangles.
Example: LeftSum(x^2 + 1, 0, 2, 4) yields a = 3.75
Notes:
  • This command draws the rectangles of the left sum as well.
  • This command is designed as a visual aid so won't give accurate answers if the number of rectangles is too large.
  • See also the commands: RectangleSum, TrapezoidalSum, LowerSum and UpperSum.
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