bug: Fixup numerical imprecision

[laurencap]

Issue #, if available:

Description of changes:
Thank you @yitchen-tim and @rmshaffer for catching my mistake!

Testing done:

Merge Checklist

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6a68b6c) 100.00% compared to head (fb58273) 100.00%.

Additional details and impacted files

@@                Coverage Diff                 @@
##           feature/autoqasm      #770   +/-   ##
==================================================
  Coverage            100.00%   100.00%           
==================================================
  Files                   162       162           
  Lines                  9653      9653           
  Branches               2076      2076           
==================================================
  Hits                   9653      9653           

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[rmshaffer]