Interactive Determinant of 2x2 Matrices

① This example demonstrates the determinant of a 2x2 matrix through randomly generated matrices, showing the numerical result and its geometric interpretation. ② The core mathematical concept is the determinant formula ad-bc for a 2x2 matrix, linking to matrix invertibility and area scaling factor. ③ Construction highlights: uses GeoGebra commands Random to generate random matrix entries, TableText to display the matrix as a table, buttons (button1-5) for refreshing, calculating, and resetting, text objects (text1-5) to show the determinant value and steps, and variable num to store the determinant. ④ Suitable for high school or introductory college linear algebra, serving as an interactive tool for students to explore determinant properties and matrix operations.