Area Approximations

This example demonstrates the approximation of the area under a function curve using the trapezoidal rule. It involves core calculus concepts like integral approximation, geometric trapezoidal area calculation, and numerical methods. Constructed with GeoGebra commands and objects such as Textfield, f, left, right, mid, trap, n, end_l, end_r, inputBox1, inputBox2, total, text1, inputBox3, value, value2, test. Suitable for high school and above students to understand the geometric meaning and numerical computation of integrals.