-module(helloworld).
-import(math,[atan/1]).
-export([start/0]).
start() ->
Atan = atan(0.7071),
io:fwrite("~p~n",[Atan]).
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/tech/pnotes/266269.html