স্বাভাৱিক মৃত্যুস্বাভাৱিক সংখ্যা
স্বাভাৱিক লগাৰিথিম (Assamese)
1. The natural logarithm of a number is its logarithm to the base of the mathematical constant e, which is an irrational and transcendental number approximately equal to 2.718281828459. The natural logarithm... from wikipedia.org