Java-Calculator

A Terminal based Calculator built with Java

Features

• Capability to evaluate arithmetic expressions.
• Uses the concept of Polish Strings for evaluation.
• Generates appropriate postfix expressions.

Requirement

• Java installed and set in PATH.

Usage

From Source

1. Compile the Calculator.java file

   foo@bar:~$ javac Calculator.java

2. Run the Calculator

   foo@bar:~$ java Calculator

Preview

Via JAR

• Requires Java (>=8)

  foo@bar:~$ java -jar Calculator.jar

Commands

Syntax	Meaning
e	Euler's Number
pi	π
n!	Factorial of n
1.6E-19	$1.6 \times 10^{-19}$
n C r	$\frac{n!}{(n-r)!~r!}$
n P r	$\frac{n!}{(n-r)!}$
a % b	Modulus or, Remainder
a ^ b	ab
b | a	$\sqrt[b]{a}$
ans	Previous Result
log()	log10
ln()	loge
rad()	° to radian
deg()	radian to °
sin()	sin (∠ in °)
cos()	cos (∠ in °)
tan()	tan (∠ in °)
sinr()	sin (∠ in radian)
cosr()	cos (∠ in radian)
tanr()	tan (∠ in radian)
sini()	sin-1 (in °)
cosi()	cos-1 (in °)
tani()	tan-1 (in °)
sinir()	sin-1 (in radian)
cosir()	cos-1 (in radian)
tanir()	tan-1 (in radian)
sinh()	sin [hyperbolic]
cosh()	cos [hyperbolic]
tanh()	tan [hyperbolic]

🧋 Contribution

Pull requests, issue reports and suggestions are welcome 😊 !