Shows you how to encrypt a word using ROT13 encryption and how to decrypt a ROT13 message.
00:30 What is ROT-13?
01:22 ROT-13 Encoding Example for “Math”
02:38 Decrypt ROT-13 Translation Rules
02:38 Decrypt ROT-13 Text
03:16 Decrypt ZNGU from ROT-13 to a Word
04:15 ROT-13 C…
Demonstrates the divisibility rules for (2, 3, 4, 5, 6, 7, 8, 9, 10, 11) using a number n.
Also demonstrates the divisibility calculator at:
Rounds a decimal or shows you how to round a number to a specific number of digits. Evaluates the rounding based on the decider digit.
00:28 Rounding Decimals Intro
00:48 Rounding Decimals 3 Step Process
01:37 Rounding Decimals Up Example
02:33 Rounding Decimals Down Exampl…
Shows you how to estimate the square root of a number without using a calculator.
You’ll find perfect squares until a perfect square is greater than your number. Call this h.
Then you’ll find the next lowest perfect square. Call this l.
The square root of your number n is between l and h.
Shows you the formula to find any ordinal number, using the ordinal number suffixes. We start by comparing the cardinal numbers to the ordinal numbers.
Rules - If a number ends in:
1, the ordinal number suffix is “st”
2, the ordinal number suffix is “nd”
3, the ordinal number suffix is “rd”
4, 5, …
Walks you through step by step to calculate an antilogarithm, using base b and a log L.
00:24 What is an Antilog?
01:05 Antilog Formula
01:26 Antilog Examples
01:59 Antilog Calculator Demo
02:53 Antilog of 5 base 3
03:25 Antilog of 4
This video shows you how to classify fractions using the 3 classification types:
Proper Fraction - numerator is less than the denominator
Improper Fraction - numerator is greater than the denominator
Whole Fraction - numerator equals the denominator
Shows you a demo of the classify fractions calc…
Walks you through step by step how to identify and solve sum of consecutive integer word problems, including consecutive even integers and consecutive odd integers.
00:51 Types of Sum of Consecutive Integer Problems
01:26 Approach to these Problems
01:54 Sum of Consecutive …
Demonstrates how to calculate the Poisson Distribution probability using our Poisson Distribution Calculator. The discrete distribution uses k success, a probability of success, lambda, mean, variance, and kurtosis.
This video shows you how to find a digit sum of a number and a reduced digit sum of a number.
Demos all 4 kinematic equations and shows you the strategy to pick the applicable equation for problems.
Solves for acceleration, displacement, time, initial velocity, and final velocity.
00:25 Kinematic Equations Definition
00:44 Kinematic Equations Displacement Formula 1…
Walks you through step by step how to solve direct variation and inverse variation equations.
Shows you how to get the constant of variation.
🕐 Time Stamps 🕐
00:28 Variation Problems Overview
01:57 Direct Variation Problem Types
02:32 Inverses Variation Problem Types
02:57 Direct Vari…
This video walks you through how to customize your LinkedIn profile URL.
It also tells you why to customize your LinkedIn URL.
Your LInkedIn URL is your brand. And just like you do with Twitter and Facebook, you should customize and claim a public URL.
Because this is how people know and recog…
This video shows you how to calculate your grade point average (GPA) on a 4.0 scale.
A+ = 4.0
A = 4.0
A- = 3.7
B+ = 3.3
B = 3.0
B- = 2.7
C+ = 2.3
C = 2.0
C- = 1.7
D+ - 1.3
D = 1.0
F = 0
To calculate your GPA check out:
This video walks you through the 6 cofunction identities for angles in degrees and the 6 cofunction identities for angles in radians.
sine, cosine, tangent, cosecant, secant, and cotangent.
You’ll also learn a real life example, as well as how to use our calculator at:
Give an angle Theta, this trigonometry video shows you how to find the Reference Angle for Theta in Degrees.
It walks you through the starting angle, the quadrant location, and then the final reference angle formula based on the Quadrant.
This video shows you how to classify numbers using 4 properties:
1) Natural Numbers
2) Rational Numbers
4) Irrational Numbers
At the end of the video, we show you the MathCelebrity calculator for how to run these tests automatically.
How to solve literal equations using the principle of opposites and the I.E.E. method.
Literal Equations Calculator:
How to Find a Cartesian Product of 2 sets A and B using the unique ordered pair combinations from both sets.
The Cartesian Product is A x B. To find the cardinality, |A x B|, we have |A| * |B|.
Cartesian Product Calculator:
Walks through a Torus shape as well as how to calculate the Volume and Surface Area of a Torus using the major radius and minor radius.
How To Build and Simplify Algebraic Expressions using coefficients, variables, operators, and exponents.
Algebraic Expressions list out expressions in terms of variables and coefficients. For each operator sign, we cover the list of trigger words:
Add, added to, plus, increased by mean addition.
De Morgan's Laws Proof and real world application.
De Morgan's Laws are transformational Rules for 2 Sets
1) Complement of the Union Equals the Intersection of the Complements
not (A or B) = not A and not B
2) Complement of the Intersection Equals the Union of the Complements
not (A and B) = n…
How To Write Set Notation for set properties such as:
Union - Elements in Set A or Set B
Intersection - Elements in Set A and Set B
Cardinality - the count of elements within the set
Elements - Items within set. Can be numeric or objects
Empty Set - The set of nothing
Such That - Defining which el…
How To Solve Order of Operations Problems (PEMDAS). PEDMAS stands for:
To memorize PEDMAS, we use the phrase, Please Excuse My Dear Aunt Sally