##Scientific Calculator##

No InBuilt Function is used

We tried to define all the functions by ourselves

#Things to take care while using the code

Keys	#Meaning	How to use in expression
^	For power fn	You can directly use it
:---:	:--------------------:	:-----------------------:
S	This is for Sine() fn	Use : S (S40 means sin(40))
:---:	:--------------------:	:-----------------------:
C	This is for Cos() fn	Use : C (C40 means cos(40))