Calcexpr

Description

The aim of the project is to create a convenient way, using CLI, to write plain mathematical functions, save them in a file, read them from a file and solve them by passing arguments(these functions are just like templates).

The database is a file, which is automatically created for you in the user/home folder.

All Commands

Command	Description
help {command}	Shows brief important notes about the functional commands of the program
exit	Terminates the program and saves all made changes
show {all, <function id>}	Based on the second argument, the command shows all functions in the database and their IDs
add <function>	Adds a function to the database and the syntax is f(variables)=(expression), where f can be any letter, the variables are also letters, more about the expression below
delete <function id>	Deletes a function based on an ID
solve <function id> <argumnets>	Based on an ID, the corresponding function is solved with the passed arguments and the syntax is ID f(arguments), where ID is found by typing command show all, f must match the function name and arguments are just numbers

The operators

Note that each operator must be enclosed by brackets. More info is written when needed, as these operators are trivial.

Operators	Usage
var	(var) -> just a variable
!	(!(var)) -> multiplies var by -1
+	((var)+(var))
-	((var)-(var))
/	((var)/(var))
*	((var)*(var))
%	((var)%(var))
^	((var)^(var))

Exemplary functions

• f(x,y)=((x)/(y)) -> Dividor
• g(z)=(!(z)) -> Oppositor
• c(a,b,p)=(((a)^(p))+((b)^(p))) -> Pythagoras Formula