Explicit and recursive definitions of sequences | Precalculus | Khan Academy

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I just spent two days in class trying to learn recursive sequences and I didn't understand it but somehow this guy on the internet taught me it in less than 10 minutes. HOW. IS. HE. THIS. GOOD. AT. TEACHING.

Jaguarx

Shoutout to all the other people failing math who came here to try to get help and got more confused

bobchlarson

And then satan said: " put the alphabet in math!"

yougotnoyams

Wait, this is precalculus? I'm learning this in Algebra I. Wtf.

chocolatetwixbarnow

Thank you this really helps, I am currently taking a math class right now and the teacher doesn’t even take notes and he is very uncommunicative, so it is hard to figure out how to do the math, but everyone else in the class gets it

sxupohd

"You can find every other term in terms of the term before it." :D nice

TheBancho

Thanks, I was struggling to understand this on my homework and this helped a lot.

mavericklucas

You need to do a video on solving these, and/or a discrete math series! It gets a bit confusing to solve. My last assignment was proving the Fibonacci sequence, which is cool, but a little challenging.

joylox

5:28 The most racist quote on khan academy...

RIMPND

OMG now I understand THANK YOU SO MUCH I emailed my teacher so THANK YOU I DON'T NEED HER HELP ANYMORE

elliptix

I'm here for my Math 232 class, but that last little statement applies to more than just math (for myself, Comp Sci 250).

Explicit code is very direct, but will take forever (hyperbolically) if the correct problem comes up, so the solution is to use a recursive code with a beginning term.

Cool

ditrixgenesis

I found how to do this. Lol God bless :D

sonofjesus

Thank you so much!
Helped me so much!!

charmingcurls

i came here since my teacher is too lazy to teach & tells us to come here :-)

no one? ok

at-xhyv

I started my test yesterday and I'm now watching this before school the next day so I can pass it

theblackk-night

"This is not an attractive color"
lmao 😂

ericawu

Thanks, my teach went over this in 20 minutes, that may seem like a good amount of time, but do that, with only 3 problems, and him not fully explaining how it is done, or what explicit, and recursive equations are!
(Don't get me wrong he's a great math teacher, but he needs to explain a few things more. Instead if hinting at what something is.)

tannerq

Thank you! It was quite a search to find a youtube video that tells the difference between recursive and explicit.

jessicaledwick

I don't know if it will help anyone, but learned it as F(n) and not A(k). Should't make a difference, but it's a bit confusing at first.

trippinthecreator

Thank you so much! This really helped! The way we do it we substituted k to n so it kinda confused me a little but now I got it!

aesthetic_animes

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