quad: Solve Quadratic Equation for Positive Real Roots

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Solve Quadratic Equation for Positive Real Roots

Description

This function solves a quadratic equation of the form 'ax^2 + bx + c = 0' and returns only the positive real roots. It handles complex intermediate calculations and returns real numbers if the roots are real.

Usage

quad(a = 3, b = 2, c = -1)

Arguments

a	The coefficient of the x^2 term. Can be complex.
b	The coefficient of the x term.
c	The constant term.

Value

A numeric vector containing the positive real root(s) of the quadratic equation. Returns 'numeric(0)' if no positive real roots are found. Returns a single value if both positive roots are identical.

Examples

# Example 1: With specific coefficients
quad(a = 1, b = -3, c = 2) # x^2 - 3x + 2 = 0

quollr documentation built on Aug. 8, 2025, 6:08 p.m.