My first recursion in Objective-C

factorial.m

//
//  main.m
//
//  Created by Ignacio Tolosa on 2/13/16.
//  Copyright © 2016 PasajesLA. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface MyMathClass : NSObject

-(int) factorial: (int) n;

@end


@implementation MyMathClass

-(int) factorial: (int) n
{
    return n > 1 ? [self factorial: n-1] * n : 1;
}

@end

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        MyMathClass *m = [[MyMathClass alloc] init];
        for (int i = 0; i < 10; i++) {
            NSLog(@"Factorial de %d es %d\n", i, [m factorial: i]);
        }
    }
    return 0;
}