app.php

<?php

use Illuminate\Support\Facades\Facade;

return [
        'providers' => [

        /*
         * Application Service Providers...
         */
        App\Providers\CalculatorServiceProvider::class,
        ],
        /*
        |--------------------------------------------------------------------------
        | Class Aliases
        |--------------------------------------------------------------------------
        */
        'aliases' => Facade::defaultAliases()->merge([
                'FacadesCalculator'=> App\Facades\CalculatorFacade::class
        ])->toArray(),
  ];