quadratic: The quadratic equation.

In cmna: Computational Methods for Numerical Analysis

Description

Find the zeros of a quadratic equation.

Usage

quadratic(b2, b1, b0)

quadratic2(b2, b1, b0)

Arguments

b2	the coefficient of the x^2 term
b1	the coefficient of the x term
b0	the constant term

Details

quadratic and quadratic2 implement the quadratic equation from standard algebra in two different ways. The quadratic function is susceptible to cascading numerical error and the quadratic2 has reduced potential error.

Value

numeric vector of solutions to the equation

See Also

Other algebra: bilinear(), cubicspline(), division, fibonacci(), horner(), isPrime(), linterp(), nthroot(), polyinterp(), pwiselinterp()

Examples

quadratic(1, 0, -1)
quadratic(4, -4, 1)
quadratic2(1, 0, -1)
quadratic2(4, -4, 1)

cmna documentation built on July 14, 2021, 5:11 p.m.