Programmer Guide/Command Reference/EVAL/fill: Difference between revisions
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===== | ==Create a vector with equally spaced elements:== | ||
;Usage 1: <code>fill(<var>n</var> {, <var>x0</var> {, <var>dx</var>}})</code> | |||
:;<var>n</var>: vector length, a scalar (>0) | |||
::note: if ''n'' is a vector, ncol(''n'') is used as number of elements | |||
:;<var>x0</var>: start value, must be a scalar (default='''0''') | |||
:;<var>dx</var>: increment, must be a scalar (default='''0''') | |||
;Result 1: The result is a vector r with ''n'' elements. The elements are initialized with: | |||
::<code>''r''<sub>i</sub> = ''x0'' + i*''dx''; i=0..''n''-1''</code> | |||
==Create a vector with variable increment:== | |||
;Usage 2: <code>fill(<var>n</var> , <var>x0</var> , <var>dx</var>)</code> | |||
:;<var>n</var>: vector length, a scalar (>0) | |||
::note: if ''n'' is a vector, ncol(''n'') is used as number of elements | |||
:;<var>x0</var>: start value, must be a scalar | |||
:;<var>dx</var>: increment, must be a vector with at least ''n''-1 elements | |||
;Result 2: The result is a vector r with ''n'' elements. The elements are initialized with: | |||
::<code>''r''<sub>0</sub> = ''x0''</code> | |||
::<code>''r''<sub>i</sub> = ''r''<sub>i-1</sub> + ''dx''<sub>i-1</sub>; i=1..''n''-1''</code> | |||
;See also: [[../init|init]], [[../rand|rand]], [[../vv|vv]] | |||
[[../#Functions|<function list>]] | |||
Latest revision as of 09:00, 30 September 2015
Create a vector with equally spaced elements:
- Usage 1
fill(n {, x0 {, dx}})- n
- vector length, a scalar (>0)
- note: if n is a vector, ncol(n) is used as number of elements
- x0
- start value, must be a scalar (default=0)
- dx
- increment, must be a scalar (default=0)
- Result 1
- The result is a vector r with n elements. The elements are initialized with:
ri = x0 + i*dx; i=0..n-1
Create a vector with variable increment:
- Usage 2
fill(n , x0 , dx)- n
- vector length, a scalar (>0)
- note: if n is a vector, ncol(n) is used as number of elements
- x0
- start value, must be a scalar
- dx
- increment, must be a vector with at least n-1 elements
- Result 2
- The result is a vector r with n elements. The elements are initialized with:
r0 = x0ri = ri-1 + dxi-1; i=1..n-1
