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Gaurav Singh Rajput

Desmos Scientific Calculator User Tutorial

Introduction

The Desmos Scientific Calculator is a versatile and user-friendly tool designed for performing a wide array of mathematical calculations, from basic arithmetic to advanced functions. This tutorial provides step-by-step instructions to help you navigate and utilize the calculator effectively.

Getting Started

1. Accessing the Calculator:

• Open your web browser and go to Desmos Scientific Calculator.

Basic Operations

1. Basic Arithmetic:

• Addition (+): Enter numbers and use the + symbol. Example: 5 + 3.
• Subtraction (-): Enter numbers and use the - symbol. Example: 8 - 2.
• Multiplication (*): Use the * symbol or the multiplication button. Example: 4 * 7.
• Division (/): Use the / symbol or the division button. Example: 10 / 2.

1. Parentheses:

• Use parentheses ( and ) to control the order of operations in your calculations. Example: 2 * (3 + 4).

Advanced Functions

1. Exponents and Roots:

• Exponents: Use the ^ symbol. Example: 3^2 for (3^2).
• Square Roots: Use the sqrt() function or the √ button. Example: sqrt(16) for (\sqrt{16}).
• Other Roots: Use fractional exponents. Example: 27^(1/3) for (\sqrt[3]{27}).

1. Trigonometric Functions:

• Sine, Cosine, Tangent: Use sin(), cos(), tan(). Example: sin(pi/2) for (\sin(\pi/2)).
• Inverse Trigonometric Functions: Use asin(), acos(), atan(). Example: asin(1) for (\arcsin(1)).

1. Logarithms and Exponentials:

• Logarithms: Use log() for base-10 and ln() for natural logarithms. Example: log(100) for (\log_{10}(100)).
• Exponentials: Use exp() for (e^x). Example: exp(2) for (e^2).

1. Constants:

• Pi ((\pi)): Type pi.
• Euler’s Number (e): Type e.

Using Functions

1. Defining Functions:

• Define custom functions using the format f(x) =. Example: f(x) = x^2 + 2x + 1.

1. Evaluating Functions:

• Evaluate the function by entering the function name and the value. Example: f(3) for (f(x)) at (x = 3).

Other Features

1. Fractions:

• Enter fractions using the / symbol. Example: 3/4 for (\frac{3}{4}).

1. Absolute Value:

• Use the abs() function to calculate absolute values. Example: abs(-7) for (|-7|).

1. Factorials:

• Use the ! symbol for factorial calculations. Example: 5! for (5!).

1. Combinations and Permutations:

• Use nCr(n, r) for combinations and nPr(n, r) for permutations. Example: nCr(5, 3) for combinations of 5 items taken 3 at a time.

Tips and Tricks

1. Keyboard Shortcuts:

• Use arrow keys to move the cursor within the expression.
• Use Ctrl + Z (or Cmd + Z on Mac) to undo, and Ctrl + Y (or Cmd + Y on Mac) to redo your last action.

1. Copy and Paste:

• You can copy (Ctrl + C) and paste (Ctrl + V) expressions and results within the calculator.

Settings and Customization

1. Settings Menu:

• Access settings via the gear icon in the top right corner to change angle mode (Degrees or Radians), adjust display format, and customize other preferences.

1. Help and Support:

• For more detailed help, click on the question mark icon or visit the Desmos support page.

Graphing Functions

1. Graphing:

• While the scientific calculator does not directly graph functions, you can switch to the Desmos Graphing Calculator by visiting Desmos Graphing Calculator for advanced graphing capabilities.

Conclusion

By following this tutorial, you should now have a solid understanding of how to use the Desmos Scientific Calculator for a wide range of mathematical operations. Experiment with different functions and features to become more proficient and take full advantage of this powerful tool.