Introduction to Function Notation

Introduction to Function Notation

The Definition of a Function. A full introduction including explanation of the domain and codomain.

[davidcabreramartinez]

it's very very helpful, in my country they don´t understand this stuff very well, however they try to teach it, but it´s wrong and that leads to a lot of misconceptions in this formal math language. thanks ill teach others that don´t understand neither English and maths, for sure.

[rviit]

I'm preaparing for iitjee, and my teacher does not teach in this way .
The explanation was very simple and good now all doubts are clear
Thanks maths sorcerer❤

[RamanShrikant]

thank you brother! lol im in grade 10 during the summer but i dont mind getting ahead with videos like this to make me more prepared!

[jeffrey]

Hi thanks for the vid it cleared up some concepts for me.
But i'm a bit confused because i think i've seen some cases where say, people write
ln(x) : R --> R
Wouldn't this be incorrect notation because we need every element in the domain (R) needs to be mapped to something in the codomain but obviously since ln(x) only takes positive inputs this is impossible? So would this mean that ln(x) isn't a function from R --> R but actually R>0 --> R (positive reals to reals only) ? Thanks!

[ian.ambrose]

Hi, thanks for useful video.
I have question, is it allowed for function *f* to output Range instead of Codomain?

[naeemhaq]

What is the difference between codomain and range? Aren't they the same thing?

[amanfeildconvecture]

Sometimes i found definition like there is unique element in B for each A, , , i wants justification that, should 'unique' be there.?

[DineshSharmaIAS]

Is it for IIT JEE mains & Advance exams in India (country) ?

[animolwrites]

Sir I need advanced set theory solution author Charles c Pinter sir please help me