We would like to be sure that 1 This additional mechanism of presenting constants is acceptable. 2 It is acceptable to add more constants (current new list is about 60 constants). Are there important constants that you think we have missed? ------------------------------------------------------------------- Looks like good work. I also use these constants frequently: one one_minus = -1 ten hundred thousand million billion trillion googol = 10^100 ln10, approx. 2.3025850929940456840179914546843642076011014886288 degree = pi / 180, approx., 0.017453292519943295769236907684886127134428718885417 khinchin, approx. 2.6854520010653064453097148354817956938203822939945 glaisher, approx. 1.2824271291006226368753425688697917277676889273250 Thank you. Best regards, Chris.