Difference between revisions of "LeftSum Command"

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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> ]
 
:Calculates the left sum of the function in the interval [''a, b''] using ''n'' rectangles.
 
:Calculates the left sum of the function in the interval [''a, b''] using ''n'' rectangles.
:{{example|1=<br><code><nowiki>LeftSum[x^2 + 1, 0, 2, 4]</nowiki></code> yields a = 3.75}}
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:{{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.<br>
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:*This command draws the rectangles of the left sum as well.
:*See also the commands:
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:*See also the commands: [[RectangleSum Command|RectangleSum]], [[TrapezoidalSum Command|TrapezoidalSum]], [[LowerSum Command|LowerSum]] and [[UpperSum Command|UpperSum]]}}
:**[[RectangleSum Command]]
 
:**[[TrapezoidalSum Command|TrapezoidalSum]]  
 
:**[[LowerSum Command]] and  
 
:**[[UpperSum Command]]
 
}}
 

Revision as of 19:02, 9 March 2013



LeftSum[ <Function>, <Start x-Value>, <End x-Value>, <Number of Rectangles> ]
Calculates the left sum of the function in the interval [a, b] using n rectangles.
Example: LeftSum[x^2 + 1, 0, 2, 4] yields a = 3.75
Notes:
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