Erlang Tutorial

Erlang Is_float Method

This method checks if the number is a floating-point value.

Is_float(X)

X-A numeric value.

If the number specified as a parameter is a floating-point type, the return value is true, otherwise false.

Example

-module(helloworld).　
-export([start/0]).　
start()　->
　　　Num =　3.00,　
　　　io:fwrite("~w",[is_float(Num)]).

When we run the above program, we will get the following results.

true