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How to calculate the exponential value of a number in Kotlin

How to calculate the exponential value of a number in Kotlin.

Here is a step-by-step tutorial on how to calculate the exponential value of a number in Kotlin:

Step 1: Import the necessary packages​

To perform mathematical operations, we need to import the kotlin.math package. This package provides various mathematical functions, including the exponential function.

import kotlin.math.exp

Step 2: Calculate the exponential value​

To calculate the exponential value of a number, you can use the exp function from the kotlin.math package. The exp function takes a double or float value as an argument and returns its exponential value.

Here's an example of calculating the exponential value of a number:

val number = 5.0
val exponentialValue = exp(number)
println("Exponential value of $number is $exponentialValue")

In this example, we declare a variable number with the value 5.0. We then use the exp function to calculate the exponential value of number and store it in the variable exponentialValue. Finally, we print the result using println.

Output:

Exponential value of 5.0 is 148.4131591025766

Step 3: Handling different types of numbers​

The exp function can be used with both double and float values. If you want to calculate the exponential value of an integer, you need to convert it to a double or float first.

Here's an example of calculating the exponential value of an integer:

val number = 5
val exponentialValue = exp(number.toDouble())
println("Exponential value of $number is $exponentialValue")

In this example, we convert the integer number to a double using the toDouble function before passing it to the exp function.

Output:

Exponential value of 5 is 148.4131591025766

Step 4: Handling negative numbers​

The exp function can also handle negative numbers. It calculates the exponential value as e raised to the power of the given number.

Here's an example of calculating the exponential value of a negative number:

val number = -2.0
val exponentialValue = exp(number)
println("Exponential value of $number is $exponentialValue")

Output:

Exponential value of -2.0 is 0.1353352832366127

In this example, we calculate the exponential value of -2.0 using the exp function.

That's it! You have learned how to calculate the exponential value of a number in Kotlin using the exp function from the kotlin.math package. You also learned how to handle different types of numbers and negative numbers.