價格：免費
更新日期：2018-11-28
檔案大小：14.6 MB
目前版本：3.6
版本需求：需要 iOS 9.3 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
This app is an interactive graphing math book in which high school, college students and science lovers can observe and try out various ways of analyzing a quadratic function with graphing features.
Students are gradually introduced the theory behind a quadratic function with various parameters. Mathematically, a quadratic function may be expressed in one of the three forms: the vertex form, the general form, and the factored form. This app shows techniques to find the zeros, the coordinates of the vertex, the y-intercept; to draw the corresponding parabola and its axis of symmetry; as well as to algebraically convert from one form to another. There are formula-specific calculators (CalPad) and parabola plotter (PlotPad) that help students characterize a quadratic function using domain, range, and variations; and visualizing the relative size and shape of the transformed parabola compared to the basic one.
• The vertex form: f(x) = a(x - h)² + k
• The general form: f(x) = ax² + bx + c
• The factored form: f(x) = a(x - x₁)(x - x₂)
支援平台：iPhone, iPad