JavaScript Factorial Calculation Demo

① This GeoGebra example demonstrates how to compute the factorial of a number using JavaScript scripting, displaying the result as text on the canvas. ② The core mathematical concept is the factorial (n!), the product of all positive integers from 1 to n, fundamental in combinatorics. ③ Construction: the summary lists objects c, f, text1, text2, and text3; c and f likely represent input controls or functions, while text1, text2, text3 display the input, calculation steps, or result; the interaction is implemented via GeoGebra's JavaScript API. ④ Suitable for high school or early college students to understand factorial definitions and the integration of programming with mathematics, also useful for teachers demonstrating dynamic math and scripting interactivity.