Oldie but goldies are best: Shepard tables https://nostrcheck.me/media/6fd3915a55ad0c2eae64e2b818acbbae9c6b3d9b5ee44e19aa040fb09f0d3cdd/08a4c4c21968b6e37c75adcf95f75c40a5ba77d08445328c03f311669078a4c6.webp