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Calculus1 22 Online
OpenStudy (solomonzelman):

Calculus Part 4. Lets learn calculus!

terenzreignz (terenzreignz):

Apparently you do. This is continued from http://openstudy.com/study#/updates/5265575ae4b040e33d2cb06d

OpenStudy (solomonzelman):

(I saw many word problems and I thought am not in math for a second)

OpenStudy (solomonzelman):

Redy?

terenzreignz (terenzreignz):

Recap: The derivative of a function at a point x is now defined as: \[\Large f'(x) = \lim_{h\rightarrow0}\frac{f(x+h)-f(x) }{h}\]

OpenStudy (solomonzelman):

why is there a apostrophe next to the (1st) f (Got disconnected again.... sorry)

terenzreignz (terenzreignz):

It denotes that it's a derivative. It's called a prime symbol.

OpenStudy (solomonzelman):

I know what term prime means, like prime numbers... but what does "prime symbol" mean?

terenzreignz (terenzreignz):

prime symbol: \[\Large \prime \]

terenzreignz (terenzreignz):

the apostrophe is called a prime symbol. \[\large f'(x)\] is read as f prime of x.

OpenStudy (solomonzelman):

Oh that;s English grammar, again my bad. I though you meant prime as prime in math.

terenzreignz (terenzreignz):

Shall we proceed?

OpenStudy (solomonzelman):

Tomorrow maybe. I am going to have 5 portfolios tomorrow, so I want to do(some of) them today.

OpenStudy (solomonzelman):

(forgot)

terenzreignz (terenzreignz):

Fine. See you then. You'd do well to memorise this formula though: \[\Large f'(x) = \lim_{h\rightarrow 0}\frac{f(x+h) - f(x)}{h}\]

OpenStudy (solomonzelman):

I'll leave this Q open. Good bye!

terenzreignz (terenzreignz):

ready for some more?

OpenStudy (anonymous):

for some first principle?

terenzreignz (terenzreignz):

@sipercyh Pardon?

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