test print out times tables in golang and erlang

00_timestables_test.txt

00_timestables_test

This is a test gist to try out times tables in golang and erlang

timestable.go

package main

import (
	"fmt"
	"sync"
)

var wg sync.WaitGroup

func main() {
	for n := 2; n <= 12; n++ {
		wg.Add(1)
		go timestable(n)
	}
	wg.Wait()
}

func timestable(x int) {
	for i := 1; i < 12; i++ {
		fmt.Printf("%d x %d = %d\n", i, x, i*x)
	}
	wg.Done()
}

timestables.erl

%% @doc This is a module
%%
%% Start the erlang shell, compile and load this code by typing
%% `c(timestable).'
%% `timestable:main().'
%%
%% @end


-module(timestables).
-compile([export_all]).

timestable(N) ->
    compute_times(N, 12).

compute_times(_X, 0) -> 
    ok;
compute_times(X, I) ->
    io:format(user, "~w x ~w = ~w~n", [X, I, X*I]),
    compute_times(X, I-1).

main() ->
    spawn_workers(12).

spawn_workers(0) -> 
    ok;
spawn_workers(N) ->
    spawn(fun() -> timestable(N) end),
    spawn_workers(N-1).