Arduino Natural Log

In this tutorial, we will discuss how to take the natural log of a given number using the log() function in Arduino.

Calculate Natural Log of a Number Using the log() Function in Arduino

To calculate the natural log of a given number, you can use the log() function present in Arduino. This function takes an input argument of type double which contains the given number and returns the natural log of that number. For example, see the below code.

#include <math.h>
void setup() {
  double number = 30.5;
  double logOfNumber = log(number);
}

In the above code, number is a variable of type double to store the given number and logOfNumber is a variable of type double to store the result of the natural log. You can change these variables according to your given number. If you want to calculate the log of a number in base 10, you can use the log10() function.

#include <math.h>
void setup() {
  double number = 30.5;
  double logOfNumber = log10(number);
}

In the above code, number is a variable of type double to store the given number and logOfNumber is a variable of type double to store the result of the natural log. You can change these variables according to your given number. Do not forget to include the math.h library before you use these functions because these functions belong to this library.