cumuintover

Hello all,

Just in case it's of interest to anyone else, I've implemented a
"cumuintover" function. Analogously to "cumusumover" and
"cumuprodover" it returns a piddle with the same dimensions as the
input containing the integral over the first dimension.

Note that it will crash if you feed it a piddle with a first dimension
of less than 6. If it's of use to anyone, I could modify it to behave
like intover and work for dims < 6.   

This is my first use of PP, so I welcome any feedback folks might
have.

Attached is a demo of the code using inline, along with the pp_def.

Here's what I get:

perl demo_cumuintover.pl
     x   |    num  |    ana  |   rel err
       0         0         0       nan  
       1      2.13      2.13  8.43e-08  
       2      14.1      14.1  3.68e-08  
       3      56.5      56.5  1.91e-08  
       4       162       162  1.23e-08  
       5       377       377  9.35e-09  
       6       758       758  7.95e-09  
       7  1.38e+03  1.38e+03  7.37e-09  
       8  2.33e+03  2.33e+03   7.3e-09  
       9   3.7e+03   3.7e+03  7.62e-09  
      10  5.63e+03  5.63e+03   8.3e-09  

-roban

demo_cumuintover.pl
Description: Text Data

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