Balan Lib

This is the java code about balan algorithm convert infix to postfix and calculated values. I also build a jar file library for the other Project. We can carry out simple expression as +, -, *, / and complex as the square root 2, square root n th root, calculate the value of expression with parentheses, combinatorial, unconformity,...

Example code to use

package test;

import nguyenvanquan7826.com.Balan;

public class Main {
	public static void main(String[] args) {
		Balan balan = new Balan();
		String math = "(1+4)/5 + sqrt(9) - sin 30 + 5nCr3";
		System.out.println(balan.valueMath(math));
	}
}

Other method

• isNumber(String s) : return true if s is a number else false
• isNumber(char c): return true if c is a number else false
• numberToString(double num, int radix, int len): return a string for number in radix (2, 8, 10, 16)
• postFix(String math): return a string is postfix of math
• primeMulti(double num): returns a string is prime factors of num
• round(double num, int len): round num with len after dot.
• valueMath(String math): calculator string math
• getRadix() và setRadix(int): get and set radix (hệ 2, 8, 10, 16).
• isDegOrRad() và setDegOrRad(boolean): Deg -> true and Rad -> false.

My Project

Calculator in Java link