Thanks for your response.

I'm aware of PDL::Interpolate but as i am new to PDL, i was unable to understand the terminology, so i was going through the docs. Soon I was lost in the docs getting nowhere. So I was hoping for a monk to guide me through it.

Now I'm trying use this code snippet from the docs

  $source = 10*xvals(10,10) + yvals(10,10);
  $index = pdl([[2.2,3.5],[4.1,5.0]],[[6.0,7.4],[8,9]]);
  print $source->interpND( $index );
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