{"version":"1.0","type":"link","title":"Numerical tower - Newikis","description":"In Scheme, the numerical tower is a set of data types that represent numbers and a logic for their hierarchical organisation.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/9/97/NumericalTower.svg/1280px-NumericalTower.svg.png","thumbnail_width":1280,"thumbnail_height":547}