Math Definitions : What Is the Golden Ratio?

The golden ratio in math is referred to as Phi and is approximately equal to 1.6180. Discover the definition of the golden ratio in math with tips from a mathematics tutor in this free video on math lessons.

Expert: Ken Au
Bio: Ken Au is a math teacher and tutor for middle school through college levels. Au holds several international patents and has published numerous technical papers.
Filmmaker: Mark Bullard

[ZenfulSoul]

Thank you very much! I finally understood this basic.

[mrzack]

this math teacher could use some golden ratio for his face.

[DrErkencho]

@FiddlerAdam
So what you mean really is that the human brain is tuned to find confort on objects that keep their natural structure (hence resembling the Ratio here exposed) and feels unease at the sight of things that look manipulated in an un-natural way (illed?). I can understand that, it would seem a nice evolutive feature to be aided with, for it could help us ID a predator hiding or a rotten fruit. I think what I wanted to point out is that it is NOT a subjective matter.

[cremedelacreme]

haha that 0 at the end 1.6180 was uncalled 4!

[goingsleep]

stupid commercial on youtube...stop commercials!

[DrErkencho]

haha... very EYE PLEASING. ahhh and that makes it what? how do you know what I please?.

[worldpeace]

Next time comb your hair and wear a decent cloth