1  /* ************************************************************************** */
 2  /*                                                                            */
 3  /*                                                        :::      ::::::::   */
 4  /*   lanczos.c                                          :+:      :+:    :+:   */
 5  /*                                                    +:+ +:+         +:+     */
 6  /*   By: lfiorell <lfiorell@student.42nice.fr>      +#+  +:+       +#+        */
 7  /*                                                +#+#+#+#+#+   +#+           */
 8  /*   Created: 2025/02/26 12:10:22 by lfiorell          #+#    #+#             */
 9  /*   Updated: 2025/02/26 12:10:30 by lfiorell         ###   ########.fr       */
10  /*                                                                            */
11  /* ************************************************************************** */
12  
13  #include "utils/math.h"
14  
15  double	lanczos(double x, int a)
16  {
17  	if (fabs(x) >= a)
18  		return (0.0);
19  	return (sinc(x) * sinc(x / (double)a));
20  }