Maclaurin Series What is a Maclaurin Series? A Maclaurin series is a way of representing a function as an infinite sum of increasing integer powers of etc.) If all of the infinite number of terms ...
Method of Differences What is the Method of Differences? The Method of Differences is a way of turning longer and more complicated sums into shorter and simpler ones Sometimes when summing series, ...
Sums of Integers, Squares & Cubes How can we use sigma notation? When writing the sum of a series you can use sigma notation The series can instead be written as This means “the sum of all the...
Linear Transformations of Roots What is a Linear Transformation? A linear transformation can be expressed as where: w is the new root x is the original root p and q are constants If you perform a ...
Roots of Quadratics How are the roots of a quadratic linked to its coefficients? Because a quadratic equation (where ) has roots and , you can write this equation instead in the form Note that It...
不同AP科目之间的难度差异可不小，“地狱级难度”的AP科目是哪些呢？它们究竟难在哪里呢？就让我们一起看看吧！ 在38门科目中，AP生物、AP英语文...
Invariant Points What is an invariant point? When applying transformations to a shape or collection of points, there may be some points that stay in their original position; these are known as inva...
2D Transformations What is meant by a 2D geometric transformation? The following transformations can be represented (in 2D) using multiplication of a 2x2 matrix rotations (about the origin) reflect...
Transformations using a Matrix What is a transformation matrix? A transformation matrix is used to determine the coordinates of an image from the transformation of an object reflections, rotations,...
