Python：以字符串形式显示的指数字符

Question

I'm looking for a way, to generate a string, that contains for example "x³". If I don't know the exponent (3), and I want to add it to the string, like this: "x^"+"3" doesn't work (of course). Is there a way, to add numbers, or possibly even characters as exponent to a string with python?

Answer 1

You might want to look at sympy :

import sympy
from sympy import init_printing

init_printing()

sympy.pprint(sympy.exp("x^3"))
 ⎛ 3⎞
 ⎝x ⎠
 ℯ    

 sympy.pprint(sympy.exp("x3"))
  x₃
  ℯ  

Answer 2

I am a little bit confused about the question, but I think you are asking how to do superscript. You can use $$ wrapped around the ^ character in a string.

plt.xlabel('Volumetric Flor Wate (m$^3$/s)')
plt.ylabel('Head (m)')
long_title = "Series: 73.77 (m$^3$/s), Head: 55.54 m \n Paraller: 67.065 ($m^3$/s), Head: 45.0132 m"
plt.title(long_title)

and it will show like this.

Answer 3

print( 'Exponent:\t ' , a , '² = ' , a ** b , sep = '' )

This is a line of Python code downloaded from the book "Python in Easy Steps" source code website. I had to Copy and Paste that line of code into the Python 3.5.1 IDLE for it to run because I can't figure out what combination of keystrokes to use to enter the exponent superscript 2 for the variable a.