Rpn Calculator

The RPN Calculator allows users to input numbers and select operations like addition, subtraction, multiplication, division, power, square root, and trigonometric functions (sin, cos, tan), presenting results in a stack-based format with detailed calculation logic and formatted output.

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How to Use the RPN Calculator

Welcome to the step-by-step guide on using the RPN (Reverse Polish Notation) Calculator. This guide will help you understand how to input numbers, select operations, and interpret the results using the given input and result fields.

Inputting Numbers

Begin by entering a number into the calculator:

  • Locate the input field labeled Enter Number.
  • Ensure that the input is a valid number, as the input is required for calculations.
  • Type the number into the input box, paying attention to formatting and decimal placement.

Selecting an Operation

After entering a number, the next step is to choose an operation:

  • Find the dropdown selection labeled Operation.
  • Select one of the available operations:
    • + for addition.
    • – for subtraction.
    • × for multiplication.
    • ÷ for division.
    • ^ for power.
    • √ for square root.
    • sin for sine.
    • cos for cosine.
    • tan for tangent.
  • This selection is also required for the calculation process.

Understanding the Stack and Result

Once the input value and operation type have been selected, the calculator uses a stack-based system to process inputs and generate a result. Here’s how it works:

  • Stack Position 1: This stores the initial number you entered.
  • Stack Position 2: Typically holds the prior stack position value, allowing operations between the last two numbers.
  • Stack Position 3 and 4: These maintain older values, shifting with each new input number.

Calculating the Result

The Result field will display the final outcome of the operation. Depending on the selected operation, the calculator will compute based on the following logic:

  • For addition, subtraction, multiplication, division, and power, it operates between the numbers in Stack Position 1 and Stack Position 2.
  • For square root, sine, cosine, and tangent, it applies the operation to the number in Stack Position 1.
  • The result will be presented with up to four decimal points for precision.

Using this guide, you should be able to effectively operate the RPN Calculator and perform various mathematical operations with ease.