In mathematics, an octagonal number is a figurate number. The nth octagonal number on is the number of dots in a pattern of dots consisting of the outlines of regular octagons with sides up to n dots, when the octagons are overlaid so that they share one vertex. The octagonal number for n is given by the formula 3n2 − 2n, with n > 0. The first few octagonal numbers are
1, 8, 21, 40, 65, 96, 133, 176, 225, 280, 341, 408, 481, 560, 645, 736, 833, 936 (sequence A000567 in the OEIS)The octagonal number for n can also be calculated by adding the square of n to twice the (n − 1)th pronic number.
Octagonal numbers consistently alternate parity.
Octagonal numbers are occasionally referred to as "star numbers", though that term is more commonly used to refer to centered dodecagonal numbers.[1]
96 (ninety-six) is the natural number following 95 and preceding 97. It is a number that appears the same when turned upside down.
96 is:
The number of divisors of 96 is 12.[6] As no smaller number has more than 12 divisors, 96 is a largely composite number.[7]
Skilling's figure, a degenerate uniform polyhedron, has Euler characteristic
Every integer greater than 96 may be represented as a sum of distinct super-prime numbers.
In physical chemistry, the Faraday constant (symbol F, sometimes stylized as ℱ) is a physical constant defined as the quotient of the total electric charge (q) by the amount(n) of elementary charge carriers in any given sample of matter: F = q/n; it is expressed in units of coulombs per mole (C/mol). As such, it represents the "molar elementary charge", that is, the electric charge of one mole of elementary carriers (e.g., protons). It is named after the English scientist Michael Faraday. Since the 2019 revision of the SI, the Faraday constant has an exactly defined value, the product of the elementary charge (e, in coulombs) and the Avogadro constant (NA, in reciprocal moles):
F = e × NA = 9.64853321233100184×104 C/mol.The Faraday constant can be thought of as the proportionality factor between the charge in coulombs(used in physics and in practical electrical measurements) and the amount of substance in moles (used in chemistry), and is therefore of particular use in electrochemistry, particularly in electrolysiscalculations. Because the elementary charge is exactly 1.602176634×10−19 C,[2] and there are exactly NA = 6.02214076×1023 entities per mole,[2] the Faraday constant is given by the product of these two quantities:
F = e × NA = 1.602176634×10−19 C × 6.02214076×1023 mol−1 = 9.64853321233100184×104 C/mol.The value of F was first determined in the 1800s by weighing the amount of silver deposited in an electrochemical reaction, in which a measured current was passed for a measured time, and using Faraday's law of electrolysis.[3] Until about 1970, the most reliable value of the Faraday constant was determined by a related method of electro-dissolving silver metal in perchloric acid.[4]
Related to the Faraday constant is the "faraday", a unit of electrical charge. One faraday is the amount of charge in one mole of electrons:
Where N0 is Avogadro's number.[5] A faraday will electrodeposit one mole of silver metal atoms.[6]
Same thing with AP constructing a Equilateral Triangle on Graph paper. I start in 10 Grid, I borrow from 100 Grid and stop at 1000 Grid. I select the lattice point of 1.414 as the vertex of the Equilateral triangle. Now if it were sqrt3 =1.7320508.... I would stop at the 10,000 Grid with that 0 digit.You see, the great lesson that all Math Professors of Old Math need to learn and learn fast, is that Math in total is imprecise, with only a few spots of math that are Exact Precision. They deal mostly in the swathes of mathematics that is Exact Perfect like 8 divided by 4 or 5 x 10 where they have exact precise numbers and solutions. And they are too stupid to realize most of math is not in this swathe of Exact Perfect but in the patch that takes up most of mathematics the swathe of dirty, messy, foggy, muddy. When mathematics fall into the dirty patches of math, their tiny marbled brains then runs for Symbols to cover up the fact that they are neck deep in foggy muddy crap. That is why so much of mathematics is a dumb math professor at the blackboard, filling up the blackboard with nothing but mindless stupid symbols and is the reason most students Hate math, because they are bombarded with teachers who are muddy and foggy of what they teach.I myself was and still AM a teacher of math, and I know the First Principle of teaching math---- teach so the student Understands and can Understand what you are saying.