RPN Calculator

About

• Reverse Polish Notation calculator
• Angles calculated in radians.
• limited precision
• Written in Javascript

Examples

Order managed by user.
25*(3 + 7)
3 enter 7 enter + 25 *
The exception is using the "js eval" command.

Trig functions are performed in the natural radians unit. So cos(60) first convert the degree to radians.
60 enter *Pi/180 cos

Commands

• ENTER or control+"E" - enters input.
• clear - clears the stack and input box.
• drop
  removes the first element from the stack.
• js eval
  Use Java Script to interpret the string. eg
  1[0]:     27*(5+2)-2
js eval
1[1]:     187
  You can easily crash js with feature.
• String
  Input a string
• swap
  Swaps the first two elements in the stack.

Keyboard Commands

These are accessed by first pressing the control button. This is usually below the shift keys.

• Ctrl+"e"   ENTER
• Ctrl+"s"   +/-
• Ctrl+"p"   ^
• Ctrl+"/"   /
• Ctrl+"t"   *
• Ctrl+"m"   -
• Ctrl+"a"   +