Question

How do you represent ln (natural logarithm) vs log base 10 in MATLAB?

a) ln()
b) log()
c) log10()
d) ln10()

Answer 1

In MATLAB, the natural logarithm is calculated using the function 'log()', while the log base 10 is calculated using the function 'log10()'. MATLAB does not have an 'ln()' or 'ln10()' function for these calculations.

Step-by-step explanation:

To represent the natural logarithm (ln) in MATLAB, you use the function log(). For instance, the natural logarithm of 10 in MATLAB would be calculated with the command log(10). This will return the value of approximately 2.303, because the natural logarithm of a number is the power to which e (approximately 2.7182818) must be raised to equal that number.

On the other hand, to represent the log base 10 in MATLAB, you should use the function log10(). For example, to find the base-10 logarithm of 100, you would use the command log10(100), which will return 2 because 10 squared equals 100.

It's important to note that MATLAB does not have a function ln() or ln10() for logarithmic calculations. Always use log() for the natural logarithm and log10() for the common logarithm (base 10).