Difference between revisions of "Sum Command"

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: {{Note| This command works for numbers, points, vectors, text, and functions.}}
 
: {{Note| This command works for numbers, points, vectors, text, and functions.}}
 
: {{Example| 1=<code>Sum[{1, 2, 3, 4, 5, 6}, 4]</code> gives you the number ''a = 10''.}}
 
: {{Example| 1=<code>Sum[{1, 2, 3, 4, 5, 6}, 4]</code> gives you the number ''a = 10''.}}
 +
==CAS specific syntax==
 +
Following syntax works only in CAS view
 +
;Sum[<Expression>,<Variable>,<Start Value>,<End Value>]
 +
:{{description}}

Revision as of 23:49, 3 April 2011


Sum[List]
Calculates the sum of all list elements.
Note: This command works for numbers, points, vectors, text, and functions.
Example:  
  • Sum[{1, 2, 3}] gives you the number a = 6.
  • Sum[{x^2, x^3}] gives you f(x) = x2 + x3.
  • Sum[Sequence[i,i,1,100]] gives you the number a = 5050.
  • Sum[{(1, 2), (2, 3)}] gives you the point A = (3, 5).
  • Sum[{(1, 2), 3}] gives you the point B = (4, 2).
  • Sum[{"a","b","c"}] gives you the text "abc".


Sum[List, Number n of Elements]
Calculates the sum of the first n list elements.
Note: This command works for numbers, points, vectors, text, and functions.
Example: Sum[{1, 2, 3, 4, 5, 6}, 4] gives you the number a = 10.

CAS specific syntax

Following syntax works only in CAS view

Sum[<Expression>,<Variable>,<Start Value>,<End Value>]


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