[Jprogramming] Another newbie J question - generating a table from a monadic function

[Rob Hodgkinson]

Try making the function 'fn' itself scalar (rank 0) by either:

   fn"(0) 3 5 839
276 4425 58340773411141200

Or else make the 'definition' rank 0 as follows:
   fn =: 3 : 0 "0
+/(1+i.y)^5
)
   fn 3 5 839
276 4425 58340773411141200
   fn i.1000
...

.../Regards Rob

On 19/7/07 4:39 PM, "Glenn M. Lewis" <glenn at hometot.com> wrote:

> Hi all!
> 
>     Say I have a function, like so...
> 
>    fn =. 3 : 0
> +/(1+i.y)^5
> )
>    fn 839
> 58340773411141200
> 
>     Now, I wish to make a table of all the values of 'fn' from 1 to
> 1000...  Do I have to write a 'for' loop?
> 
>     Obviously, 'fn i. 1000' doesn't work and changing 'y' to "0 y in the
> function also doesn't work because of the '+/'.
> 
>     This has got to be a simple thing, but I just can't quite seem to
> get it.
> 
>     Thanks!
> -- Glenn
> 
> 
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