Introduction:

Antilog, also known as the inverse logarithm, is a mathematical operation used to find the exponent given a base and the logarithm of a number. In simpler terms, antilog helps in discovering what number must be raised to the base logarithm for it to equal a given value. Performing an antilog computation can be a bit challenging without the right tool, but thanks to modern calculators, this task has become much easier. This article will guide you through the process of calculating antilog using different types of calculators.

Step 1: Understand the Concept of Antilog

Before diving into how to calculate antilogs on a calculator, it’s essential first to understand what an antilog is and why it’s useful. An antilogarithm reverses the process of calculating logarithms, meaning if you have calculated the logarithm of a number (let’s call this number Y), its antilogarithm will give you back the original number.
Suppose you have a logarithm base value (denoted as B) and a logarithmic value (denoted as X) with the following relationship:

logB(Y) = X

In this equation, Y is equal to B raised to the power of X. The antilogarithm calculates this original value:

Y = antilogB(X)

Step 2: Identify the Type of Calculator You Have

Calculating antilogs on a calculator depends on which calculator model you own. The most common types are scientific calculators and graphing calculators.

Step 3: Using a Scientific Calculator

If you own a scientific calculator, follow these steps:

1. Turn on your calculator.

2. Enter the logarithmic value (X).

3. Look for an “antilog” or “INV” button followed by “LOG” or “10^x” depending on your calculator’s design.

4. Press the corresponding button to obtain the antilog value of X.

For example, suppose you have the logarithm value X = 2. Calculate its antilog:

1. Enter ‘2’ on your calculator.

2. Press the “antilog” or “INV” followed by “LOG” or “10^x” button.

3. The calculated result (Y = 100) should now be displayed on your calculator.

Step 4: Using a Graphing Calculator

If you have a graphing calculator, follow these steps:

1. Turn on your calculator.

2. Press the “MODE” button and ensure the calculator is in “NORMAL” mode.

3. Enter the logarithmic value (X).

4. Press the “2nd” or “SHIFT” button, then press the “LOG” or “10^x” button to calculate the antilog.

5. The result will be displayed on the screen.

Conclusion:

Calculating antilogs using a calculator is a simple and straightforward process once you understand how logarithms work and how to use your specific calculator model. Whether you have a scientific or graphing calculator, calculating antilogs is an essential mathematical skill that you can master with ease by following this guide.