4.3.3. qeq

This module defines the interface for solving a quadratic equation.

The quadratic equation is of the form:

\[a x^2 + b x + c = 0,\]

where \(a\), \(b\), and \(c\) are the coefficients of the equation.

Of course, this is not very useful in scientific context to invoke such a solver.

It was developed as a prototype to ensure that the envisioned architecture of Open Interfaces is feasible. It is used as a simple text case as well.

4.3.3.1. Module Contents

class qeq.QEQ(impl: str)

Interface for solving quadratic equations.

This class serves as a gateway to the implementations of the of the quadratic-equation solvers.

Example

Let’s solve the following quadratic equation:

\[x^2 + 2 x + 1 = 0.\]

First, import the necessary modules:

>>> from oif.interfaces.qeq import QEQ

Define the coefficients of the equation:

>>> a, b, c = 1.0, 2.0, 1.0

Create an instance of the solver:

>>> s = QEQ("py_qeq_solver")

Solve the equation:

>>> result = s.solve(a, b, c)
>>> print(result)
[-1. -1.]

solve(a: float, b: float, c: float)

Solve the quadratic equation \(a x^2 + b x + c = 0\).