The Endocrine System Essentials. 1  The endocrine system is made up of a network of glands. 2  These glands secrete hormones to regulate many bodily functions, including growth and metabolism. 3  Endocrine diseases are common and usually occur when glands produce an incorrect amount of hormones.
The Fourier transform is called the frequency domain representation of the original signal. The term Fourier transform refers to both the frequency domain representation and the mathematical operation that associates the frequency domain representation to a function of time.
The Fourier Transform. The Fourier Transform and its inverse relate pairs of functions via the two formulas. My goal here again isn't a rigorous derivation of these guys (this can be found all over the internet), but instead an explanation of why exactly they take this form, and what they do.