Velvel (William) Kahan highlighted a lot of challenges in writing correct complex algebra code. Fortran 2008 extends the number of intrinsic functions accepting complex arguments. The aim of this project to stress test these intrinsics on conformal mapping with branch cuts. Of particular interest are function results on branch cuts (slits). IEEE 754-2008 behaviour, in particular plus and minus zero, is expected in all cases. The main driver will produce a PDF with conformal maps which should be compared against known references.

Features

  • simple autotools build
  • optional graphical conformal maps
  • checking all 3 IEEE floating point types
  • simple presentation of the test results

Project Samples

conformal map of ATANH

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Registered

2016-08-25
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