examples of supported calculations requested as formulas

• 3 + 2
• 3 / 2
• 3 % 2
• -4 + 2 * 3
• -1 * ( 5 + 3 + 1 )
• 3 * ( sqrt 4 )
• ( sqrt ( ( 3 ^ 2 ) + ( 4 ^ 2 ) ) )

currently supported operators

• if (word == "+" || word == "-" || word == "*" || word == "/" || word == "^" || word == "%" || word == "sqrt")
• "binary" means 2 operands for the operator
• + summation (binary)
• - subtraction (binary)
• * multiplication (binary)
• / division (binary)
• % modulo (binary)
• ^ exponentiation (binary)
• sqrt square root (unary)
• "unary" means 1 operand for the operator