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Re: How to do a simple loop?
*To*: mathgroup at smc.vnet.net
*Subject*: [mg30433] Re: How to do a simple loop?
*From*: "Oliver Friedrich" <oliver.friedrich at tz-mikroelektronik.de>
*Date*: Sat, 18 Aug 2001 04:04:57 -0400 (EDT)
*References*: <9ligqt$is2$1@smc.vnet.net>
*Sender*: owner-wri-mathgroup at wolfram.com
Hi Vadim,
1. To print the function i times
Table[x*i-i,{i,100}]//TableForm
It creates a list with i elements. Each element represents your desired
expression.
2. Plot the function
Scan[ Plot[ x i-i, {i,0,#}]&, Range[100]]
Range creates a table with elements 1 to 100. Scan operates the Plot
function on each of that elements. The element is inserted at the # (a so
called pure function). Careful with that x, you must replace it with a
numerical value, cause Plot won't evaluate on non-numeric expressions.
3. Find the Integral
Map[Integrate [x i-i, {x, 0, #}]&,Range[5]]
Same as above, except that Map creates a list with the result.
Have fun
Oliver Friedrich
"Vadim Nagornyi" <vnagornyi at netscape.net> schrieb im Newsbeitrag
news:9ligqt$is2$1 at smc.vnet.net...
> Still using 2.2 ...
> OK, I have a function that depends on an integer, for example F=x*i-i.
> For i ranging from 1 to 100 I need to perform the following:
>
> 1. Display the function equation.
> 2. Plot the function in the range 0...i
> 3. Find the integral of the function for the same range.
>
> The loop body looks simple:
>
> F
> Plot[F, {x, 0, i}]
> Integrate [F, {x, 0, i}]
>
> but how to iterare this?
>
> Thanks,
> Vadim.
>
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