## How to Calculate Log in Scientific Calculator

Calculating logarithms can be a challenging task, but with the help of a scientific calculator, it can be done with ease. A scientific calculator is designed to handle complex mathematical equations, including logarithmic expressions. In this article, we will show you how to calculate log in scientific calculator with ease.

### Step 1: Turn on Your Calculator

The first step in calculating logs on a scientific calculator is to turn on the calculator by pressing the ON button. Ensure that your calculator is set to the right mode for your calculation.

### Step 2: Identify the Base and Argument

To calculate log, you need to identify the base and argument of the logarithmic expression. The base is the number that the logarithm function is being applied to, while the argument is the number being plugged into the function. For example, in log base 2 of 8, the base is 2, and the argument is 8.

### Step 3: Press the Log Button

Once you have identified the base and argument, locate the log button on your scientific calculator. The log button is usually labeled as log or log10, depending on the calculator. Press the button to activate the logarithmic function.

### Step 4: Enter the Argument

After pressing the log button, enter the argument of the logarithmic expression. This is the number being plugged into the logarithmic function. You can enter the argument by typing in the number using the number keys on your calculator.

### Step 5: Press the Base Key

After entering the argument, press the base key to specify the base of the logarithmic function. For example, if you are calculating log base 2 of 8, press the 2 key on your calculator after entering 8 as the argument.

### Step 6: Press the Equals Key

Once you have entered the argument and specified the base of the logarithmic function, press the equals key to perform the calculation. The result of the calculation will be displayed on the screen of your scientific calculator.

### Step 7: Practice Different Examples

To become proficient in calculating logs on a scientific calculator, it is important to practice different examples of logarithmic expressions. Try out different bases and arguments to develop your skills and confidence in using logarithms on your calculator.

### Step 8: Use the Natural Logarithm Function

Apart from the logarithm function, scientific calculators also have a natural logarithm function (ln). This function is used for logarithmic expressions with a base of e. To use the natural logarithm function, press the ln button on your calculator and enter the argument.

### Step 9: Change the Base of a Logarithmic Expression

To change the base of a logarithmic expression, you can use the change of base formula. The formula states that log base b of x is equal to log base a of x divided by log base a of b. To apply the formula on your calculator, perform the following steps:

### Step 10: Enter the Original Expression

Enter the original logarithmic expression on your calculator, including the base and argument.

### Step 11: Press Equals

Press the equals key to get the result of the original expression.

### Step 12: Enter the New Base

Enter the new base for the logarithmic expression on your calculator. This is the base that you want to change the expression to.

### Step 13: Press the Log Key

Press the log key on your calculator to activate the logarithmic function.

### Step 14: Enter the New Base as the Argument

Enter the new base as the argument of the logarithmic function on your calculator. This is the value that you want to use for the base of the new expression.

### Step 15: Press Equals

Press the equals key to get the result of the new expression. This result represents the logarithmic expression in the new base.

### Step 16: Use the Antilog Function

The antilog function is used to find the value of x in an exponential equation. To use the antilog function, enter the base of the exponential equation, press the antilog button, and enter the exponent of the equation.

### Step 17: Enter the Base

Enter the base of the exponential equation on your calculator.

### Step 18: Press the Antilog Button

Press the antilog button on your calculator to activate the antilog function.

### Step 19: Enter the Exponent

Enter the exponent of the exponential equation on your calculator. This is the value that the base is being raised to.

### Step 20: Press Equals

Press the equals key to get the value of x in the exponential equation. This value represents the antilog of the equation.

By following these simple steps, you can easily calculate log in scientific calculator. With practice, you can become proficient in using logarithmic functions to solve complex mathematical equations.