Difference between revisions of "Sequence Command"
From GeoGebra Manual
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:Yields a list of objects created using the given expression and the index ''i'' that ranges from number ''a'' to number ''b''. | :Yields a list of objects created using the given expression and the index ''i'' that ranges from number ''a'' to number ''b''. |
Revision as of 13:41, 10 September 2011
- Sequence[ <Expression>, <Variable i>, <Number a>, <Number b>]
- Yields a list of objects created using the given expression and the index i that ranges from number a to number b.
- Example:
L = Sequence[(2, i), i, 1, 5]
creates a list of points whose y-coordinates range from 1 to 5:L = {(2, 1), (2, 2), (2, 3), (2, 4), (2, 5)}
.
- Sequence[ <Expression>, <Variable i>, <Number a>, <Number b>, <Increment>]
- Yields a list of objects created using the given expression and the index i that ranges from number a to number b with given increment.
- Example:
L = Sequence[(2, i), i, 1, 3, 0.5]
creates a list of points whose y-coordinates range from 1 to 3 with an increment of 0.5:L = {(2, 1), (2, 1.5), (2, 2), (2, 2.5), (2, 3)}
.
- Note: Since the parameters a and b are dynamic you could use slider variables in both cases above as well.
- Sequence[ <Number b> ]
- Creates list of numbers 1 to b, e.g. {1, 2, ..., b}.
- Example:
L = 2^Sequence[4]
creates list {2, 4, 8, 16}.
- Note: See Lists for more information on list operations.
CAS Syntax
- Sequence[ <Expression>, <Variable i>, <Number a>, <Number b> ]
- Yields a list of objects created using the given expression and the index i that ranges from number a to number b.
- Example:
Sequence[x^i, i, 1, 10]
generates the sequence {x, x², x³, x⁴, x⁵, x⁶, x⁷, x⁸, x⁹, x¹⁰}.
- Sequence[ <Expression>, <Variable i>, <Number a>, <Number b>, <Increment>]
- Yields a list of objects created using the given expression and the index i that ranges from number a to number b with given increment.
- Example:
Sequence[x^i, i, 1, 10, 2]
generates the sequence {x, x³, x⁵, x⁷, x⁹}.
- Sequence[ <Number b> ]
- Creates list of numbers 1 to b, e.g. {1, 2, ..., b}.
- Example:
Sequence[5]
generates the sequence {1, 2, 3, 4, 5}.