# [Tutor] Fw: I want to display Integral symbols

Alan Gauld alan.gauld at yahoo.co.uk
Wed Sep 6 05:33:01 EDT 2017

```On 06/09/17 08:09, edmundo pierre via Tutor wrote:
> So show us what you did. Its hard to figure out what's
> gone wrong when we can't see your code:That is what I did:

> from sympy import*from tkinter import*from sympy import init_printing
> root = Tk()root.geometry("450x350+500+500")root.title("Factorisations/Simplifications")root.configure(background = "gray")#Difine variablevar1= StringVar()var2 =StringVar()#Create the function answer
> def Answer():    x = symbols("x")    A = var1.get()    B = factor(A)    Right_insert_top .insert(END,str(B))

As you can see your code is a mess. you need to send in plain text
format not HTML, otherwise the mail system mangles everything

I'll try to unscramble it as best I can but it would help a lot
if in future you can switch to plain text for mails with code.
(This is true of most programming mailing lists not just Python)

from sympy import*
from tkinter import*
from sympy import init_printing

root =Tk()
root.geometry("450x350+500+500")
root.title("Factorisations/Simplifications")
root.configure(background = "gray")
#Difine variable
var1= StringVar()
var2 =StringVar()

x = symbols("x")
A = var1.get()
B = factor(A)
Right_insert_top .insert(END,str(B))

#Create the function simplification
def Simplification():
init_printing()
x= symbols("x")
D = var2.get()
E = expand(D)
Right_insert_top .insert(END,str((E))

#Create the Factorisation frame
Tops = Frame(root,relief= "sunken")Tops.pack(side = TOP)

#Create a Label of the Top
Top_Label = Label(Tops,font=("arial",30,"bold"),text =
"Factorisations/Simplifications",bd = 10)
Top_Label.pack(side = "top",fill =BOTH )

> #Create the left frame

<snip left side>
#Create a Right side Frame
Right = Frame (root,relief= "sunken")
Right.pack(side = "right",fill = BOTH)

#Create a Frame on the Top right
Right_top = Frame (Right,relief= "sunken")
Right_top.pack(side = "top")
...
#Create a insert text on the screen on the right

Right_insert_top = Text( Right_top,font=("arial",10,"bold"),bd= 5)
Right_insert_top.pack()

Ok, I got bored after this, and we have the basic info we need...

We can now see that you are using a Text widget with the Arial font.

> I am using Window 7.

> I got: x**2+6*x+9, which is Correct. But I do not like the syntax.

OK, So all you need to do is write a string formatting function
that takes your current output and returns the output you want.
You can write and test that in a command line tool which will
avoid all the complexity of a GUI. Then plug that into your GUI
and insert the output into your Text widget.

I don't know sympy but it may have some string formatting
functions that you can use. If not you will need to
interpret the input string yourself. There are some
math expression parsers around on the internet if you
search for the,m. You could adapt one of them I'm sure.

>  I used the Integral as an example of how my answer should look

All the mathematical symbols have their own characters.
Here is a link to the characters that Arial font supports:

http://www.fileformat.info/info/unicode/font/arial_unicode_ms/list.htm

You will see the integral variations at U222B-U2233
Use your browser string find tool to find the other
operators/symbols.

Your formatting function will need to insert the
appropriate unicode characters into your output string.

> My code run perfectly, you can try.

Your code does not run perfectly since it doesn't
do what you want! I assume you mean your code doesn't
generate any errors. That's a different thing :-)

--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos

```