Truncate a float in Erlang

Question

I am using a function to create a list from a float.

 float_to_list(0.02).

It returns:

\"2.00000000000000000000e-002\"
         


        

Answer 1

mochinum:digits converts a float to a string with an appropriate level of precision.

1> mochinum:digits(1.1).
"1.1"
2> mochinum:digits(1.2345).
"1.2345"

Not exactly what the OP requested, but useful nonetheless.