So far there are the following articles on using the Sympy library:

This time I will explain how to use the Sympy library to solve systems of equations, using the example from a previous article (Solving systems of linear equations by QR decomposition using Numpy).

Start ipython notebook (if you want to use the file you can download it from the following link (broken link)):

The script code is shown below:

#!/usr/bin/env python


#Se importa sympy


from sympy import *


#Se define las variables simbolicas x,y,z


x = Symbol('x')


y = Symbol('y')


z= Symbol('z')


#Resolver el sistema de ecuaciones


#3x+9y-10z  =   24


#x-6y+4z      =   -4


#10x-2y+8z  =  20


resultado =solve([3*x+9*y-10*z-24,x-6*y+4*z+4,10*x-2*y+8*z-20],[x,y,z])


print resultado

Running the script gives the following:

{x: 308/103, z: -117/103, y: 42/103}

Note that the result obtained is the same as in the article mentioned above.

The image of using the notebook is shown below:

Make a donation! If you liked the article you can make a donation with Bitcoin (BTC) using the digital wallet of your choice to the following address: 17MtNybhdkA9GV3UNS6BTwPcuhjXoPrSzV

Or by scanning the QR code from the wallet:

17MtNybhdkA9GV3UNS6BTwPcuhjXoPrSzV