Alphabetical Lesson List: (14) lessons starting with the letter N

[+] N-Grams
Takes a phrase and displays chracter unigrams, character bigrams, character trigrams, and character n-grams as well as word unigrams, word bigrams, word trigrams, and word n-grams. (ngrams)
Also performs frequency analysis (number of instances of each letter)

Features: Calculator | Watch the VideoTags: character, word
[+] Natural Numbers
Shows a set amount of natural numbers and cumulative sum

Features: Calculator | Practice Problem Generator

Examples (1):
250 natural numbers
[+] Negative Binomial Distribution
Calculates the probability of the kth success on the xth try for a negative binomial distribution also known as the Pascal distribution.? ? It calculates the probability of exactly k successes, no more than k successes, and greater than k successes as well as the mean, variance, and standard deviation.

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: binomial, distribution, event, mean, probability, standard deviation, variance
[+] Net Present Value (NPV) - Internal Rate of Return (IRR) - Profitability Index
Given a series of cash flows Ct at times t and a discount rate of (i), the calculator will determine the Net Present Value (NPV) at time 0, also known as the discounted cash flow model.
Profitability Index
Also determines an Internal Rate of Return (IRR) based on a series of cash flows

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the VideoTags: cash flow, discount rate, interest, present value, return
[+] Newton Method
Calculates the square root of a positive integer using the Newton Method

Features: Calculator | Quiz Generator | Practice Problem Generator

Examples (1):
Newton method sqrt(50)
[+] Nominal Yield
Given an effective annual rate of interest based on a compounding period, this determines the nominal yield.

Features: Calculator | Practice Problem GeneratorTags: compound, effective rate, nominal rate
[+] Nonagon
[+] Nonagonal Number
This calculator determines the nth nonagonal number

Features: Calculator | Practice Problem Generator

Examples (2):
30th Nonagonal number
45th Nonagonal numberTags: nonagon, number
[+] Normal Distribution
Calculates the probability that a random variable is less than or greater than a value or between 2 values using the Normal Distribution z-score (z value) method (Central Limit Theorem).
Also calculates the Range of values for the 68-95-99.7 rule, or three-sigma rule, or empirical rule

Features: Calculator | Quiz Generator | Practice Problem Generator

Examples (3):
P(Z>1.5)
P(Z<2.15)
The amount of Jens monthly phone bill is normally distributed with a mean of $73 and a standard deviation of $12. What percentage of her phone bills are between $37 and $109?Tags: distribution, event, mean, probability, standard deviation, variance, z score
[+] Number Bonds
Adds or subtracts 2 numbers and using grouping by 10 or 100. Also called number bonds or addition facts. Multiplies two numbers using tape diagrams.

Features: Calculator | Practice Problem Generator

Examples (3):
12+15
11+7
9*7
[+] Number Line
Counts from a point going left and right on a number line

Features: Calculator | Quiz Generator | Practice Problem GeneratorTags: addition, number line, subtraction
[+] Number Line Midpoint
Calculates a midpoint between 2 points on a number line or finds the second endpoint if one endpoint and midpoint are given.

Features: Calculator | Quiz Generator | Practice Problem Generator | Watch the Video

Examples (3):
midpoint 2,5
midpoint of 2 and 6
mpt 3,5Tags: midpoint, number line, points
[+] Number Property
This calculator determines if an integer you entered has any of the following properties:
* Even Numbers or Odd Numbers (Parity Function or even-odd numbers)
* Evil Numbers or Odious Numbers
* Perfect Numbers, Abundant Numbers, or Deficient Numbers
* Triangular Numbers
* Prime Numbers or Composite Numbers
* Automorphic (Curious)
* Undulating Numbers
* Square Numbers
* Cube Numbers
* Palindrome Numbers
* Repunit Numbers
* Apocalyptic Power
* Pentagonal
* Tetrahedral (Pyramidal)
* Narcissistic (Plus Perfect)
* Catalan
* Repunit

Features: Calculator | Practice Problem Generator | Watch the Video

Examples (6):
30 as a unique number
45 as a composite number
numerical properties of 100
properties of 35
tell me about 72
A(4)Tags: cube, divisor, even, number, odd, palindrome, pentagon, perfect, property, pyramid, square
[+] Numbers Word Problems
Solves various basic math and algebra word problems with numbers

Features: Calculator | Practice Problem GeneratorTags: consecutive, integer, word problem