Natural Numbers can mean either Counting Numbers {1, 2, 3, ...}, or Whole Numbers {0, 1, 2, 3, ...}, depending on the subject. Integers. Integers are like whole numbers, but they also include negative numbers... but still no fractions allowed! So, integers can be negative {-1, -2,-3, -4, -5, ... }, positive {1, 2, 3, 4, 5, ... }, or zero {0} We can put that all together like this: Integers = { ..., -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, ...
An application-programming interface (API) is a set of programming instructions and standards for accessing a Web-based software application or Web tool. A software company releases its API to the public so that other software developers can design products that are powered by its service. For example, Amazon.com released its API so that Web site developers could more easily access Amazon's product information.
API stands for Application Programming Interface and is a set of code and standards for accessing a Web-based application or service. API thus allows a web application to interact with other applications programmatically similar to the way human accesses a web application via GUI within web browsers.PI stands for Application Programming Interface and is a set of code and standards for accessing a Web-based application or service. API thus allows a web application to interact with other applications programmatically similar to the way human accesses a web application via GUI within web browsers.