Hope this helps

It has come to my attention that some do not know the correct use of the term "fundamental". So with courtesy of Dictionary.com, I have provided a definition below:

fun⋅da⋅men⋅tal

 

–adjective

1.	serving as, or being an essential part of, a foundation or basis; basic; underlying: fundamental principles; the fundamental structure.

2.	of, pertaining to, or affecting the foundation or basis: a fundamental revision.

3.	being an original or primary source: a fundamental idea.

4.	Music. (of a chord) having its root as its lowest note.

–noun

5.	a basic principle, rule, law, or the like, that serves as the groundwork of a system; essential part: to master the fundamentals of a trade.

6.	Also called fundamental note, fundamental tone. Music. a. the root of a chord. b. the generator of a series of harmonics.

7.	Physics. the component of lowest frequency in a composite wave.