SING BABY!
What is this? Invasion of the Far East? Hopefully this isn't the case, as a lot of Westerners are about to be put to shame.
Stunning movie, as usual. For your question, combining Integration, Factorization, Logarithmic, Trigonometry and of course Sensei, the Calculus function.
There are probably a number of graphs that cross but based on Pure, it's about...well the graph is going on the +ve scale at...hmm...about every 90 degrees on 4 cms...the angles are way off, but that's the picture.
Values B and C I'm using Binomial Theorem with the Chain Rule. I dunno why, but I'm getting values +ve, where 'a' and 'x' = b 3/2 c x eln |x| A has to be or equal to 1 (>) every 4cms.
Oh forget it....I'll just use double strike instead...
Later,
Dan.