CVXR (version 0.99-7)

curvature: Curvature of Expression

Description

The curvature of an expression.

Usage

curvature(object)

Arguments

object

An '>Expression object.

Value

A string indicating the curvature of the expression, either "CONSTANT", "AFFINE", "CONVEX, "CONCAVE", or "UNKNOWN".

Examples

# NOT RUN {
x <- Variable()
c <- Constant(5)

curvature(c)
curvature(x)
curvature(x^2)
curvature(sqrt(x))
curvature(log(x^3) + sqrt(x))
# }