The line integral of the vector field along the curve is

The function has a local maximum at if there exists such that for any .

If the directional derivative of the function in the direction at is negative, then moving from in the direction the function is increasing.

If the function is differentiable at , then

In the norm is defined as :

If a vector system is orthonormal, then it is a basis.

One has .

If is an eigenvalue of the linear transformation , then there exists a nonzero vector , such that .

The probability density function of the exponential distribution is

• , if
• , if

The binomial distribution with parameters and is the discrete probability distribution with possible values and probabilities