The Calculator: A Comprehensive Guide to Effective Calculation and Advanced Functions
OnCalculator - User Guide
Welcome to the calculator, a simple online calculator application. This user guide will help you understand how to use the calculator's features effectively.
Features
- Calculator Screen: The screen at the top of the calculator displays the current input and the calculated result.
- Numeric Buttons: Click on the numeric buttons to enter numbers into the calculator screen.
- Operator Buttons: Click on the operator buttons to perform calculations.
- Addition: "+"
- Subtraction: "-"
- Multiplication: "×"
- Division: "÷"
- Evaluation Button: Click the "Evaluate" button to perform the calculation and display the result on the screen.
- Trigonometric Functions: The calculator supports the following trigonometric funtions.
- Sine(sin): Click the "sin" button to caculate the sine of the current value on the screen.
- Cosine(cos): Click the "cos" button to calculate the cosine of the current value on the screen.
- Tangent(tan): Click the "tan" button to calculate the tangent of the current value on the screen.
- Exponentiation and Square Root: The calculator supports the following functions.
- Power(x^2): Click the "x^2" button to calculate the square of the current value on the screen.
- Square Root(√x): Click the "√x" button to calculate the square root of the current value on the screen.
- Logarithm: The calculator supports the logarithm function.
- Logarithm(log): Click the "log" button to calculate the logarithm of the current value on the screen.
- Constants: The calculator provides the following mathematical constants.
- Pi(π): Click the "π" button to enter the value of Pi(approximately 3.14159265359) on the screen.
- Euler's Number(e): Click the "e" button to enter the value of Euler's number (approximately 2.71828182846) on the screen.
- Factorial: The calculator supports the calculation of factorial.
- Factorial(n!): Enter a positive integer on the screen, then click the "n!" button to calculate its factorial.
- Backspace: Click the "Backspace" button to delete the last character from the caculator screen.
- Calculation History: The calculator keeps track of the calculation history and displays it on a scatter chart.
- Each calculation is recorded with its result on the chart.
- The chart visualizes the relationship between the calculation index and the result.
Getting started
- Open the Calculator in your web browser.
- Use the numeric buttons to enter numbers into the calculator screen.
- Use the operator buttons to perform calculations.
- Click the "Evaluate" button to perform the calculation and display the result on the screen.
- Utilize the trigonometric functions, exponentiation and square root functions, logarithm funtion, and mathematical constants as needed.
- Use the factorial function to calculate the factorial of a positive integer.
- Click the "Backspace" button to delete the last character from the calculator screen.
- The calculation history is displayed on the scatter chart below the caculator screen.
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