tests/unit_tests/double/test_isnan.sci


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function test_isnan()
     d0 = %pi
   d2 = [1 2 3 4 ; 5 6 7 8 ; 9 10 11 12 ; 13 14 15 16]
   z0 = d0 + %i * d0
   z2 = d2 + %i * d2

  disp(isnan(d0))
  disp(isnan(d2))
  disp(isnan(z0))
  disp(isnan(z2))
endfunction