Simple quadratic equation solution
This is a simple Excel spreadsheet using the familiar formula to find the roots of a quadratic. For those who wish to investigate coding, a Python version is also available.
Simple quadratic equation solution as a spreadsheet
Simple quadratic equation solution as python code
import math
# Enter the coefficients of the
# quadratic equation ax^2+bx+c
# below
a = 2
b = -6
c = 3
# Simple solution
d = b*b-4*a*c
print ( "Discriminant = ",d)
if d < 0:
print ("No real solution")
exit()
x1 = (-b-math.sqrt(d))/(2*a)
x2 = (-b+math.sqrt(d))/(2*a)
print("x = ",x1," or ",x2)
# Output:
# Discriminant = 12
# x = 0.6339745962155614 or 2.3660254037844384
The easiest way to experiment with the Python code is to click on Copy code above and then paste it into any online interpreter – such as this one from Python Principles.
The simple spreadsheets and python examples on this page may be copied freely.