'Mathematics' Category
Derivatives
A derivative is a “rate of change” of a continuous function at a point in a coordinate system. The derivative of function f at point a is defined by:
. (1)
For the purpose of explaining the rules of derivatives below, we also use to represent .
Rules [...]Exponential/Logarithmic Functions
The Exponential function and Logarithmic function, with the base of are related like this:
. (1)Vectors
A vector, as opposed to a scalar, has a direction.. For example, velocity is a vector while speed is a scalar. When one says a car drives “at 60 mi/hr,” he/she is describing its “speed.” On the other hand, “60 mi/hr eastbound” is “velocity.”