Pretty printing

SymPy can pretty print the output using ASCII and Unicode characters. There are a number of printers available in SymPy. The following are the most common printers of SymPy:

• LaTeX

• MathML

• Unicode pretty printer

• ASCII pretty printer

• Str

• dot

• repr

This program demonstrates the pretty print function to print various expressions using the ASCII and Unicode printers:

from sympy.interactive import init_printing
from sympy import Symbol, sqrt
from sympy.abc import x, y
sqrt(21)
init_printing(pretty_print=True) 
sqrt(21) 
theta = Symbol('theta') 
init_printing(use_unicode=True) 
theta 
init_printing(use_unicode=False) 
theta 
init_printing(order='lex') 
str(2*y + 3*x + 2*y**2 + x**2+1) 
init_printing(order='grlex') 
str(2*y + 3*x + 2*y**2 + x**2+1) 
init_printing(order='grevlex') 
str(2*y * x**2 + 3*x * y**2) 
init_printing(order='old') 
str(2*y + 3*x + 2*y**2 + x**2+1) 
init_printing(num_columns=10) 
str(2*y + 3*x + 2*y**2 + x**2+1)

The following program uses the LaTeX printer for pretty printing...