In computing (particularly, in programming), undefined value is a condition where an expression does not have a correct value, although it is syntactically correct. An undefined value must not be confused with empty string, Boolean "false" or other "empty" (but defined) values. Depending on circumstances, evaluation to an undefined value may lead to exception or undefined behaviour, but in some programming languages undefined values can occur during a normal, predictable course of program execution. Dynamically typed languages usually treat undefined values explicitly when possible. For instance, Perl has undef operator which can "assign" such value to a variable. In other type systems an undefined value can mean an unknown, unpredictable value, or merely a program failure on attempt of its evaluation. Nullable types offer an intermediate approach; see . (Wikipedia).
Ratios with zeros - a problem for many early math students. This video helps you understand how to derive those values.
From playlist Summer of Math Exposition Youtube Videos
In this video, we we find the values of x that lead to an undefined result.
From playlist Algebra 2 Chapter 1 Take Home Test
What is the definition of absolute value
http://www.freemathvideos.com In this video playlist you will learn how to solve and graph absolute value equations and inequalities. When working with absolute value equations and functions it is important to understand that the absolute value symbol represents the absolute distance from
From playlist Solve Absolute Value Equations
This algebra video provides a basic introduction into vertical lines and their undefined slopes. The slope of a horizontal line, on the other hand, is zero.
From playlist New Algebra Playlist
Why is dividing by zero undefined
👉 Learn about zeros and multiplicity. The zeroes of a polynomial expression are the values of x for which the graph of the function crosses the x-axis. They are the values of the variable for which the polynomial equals 0. The multiplicity of a zero of a polynomial expression is the number
From playlist Zeros and Multiplicity of Polynomials | Learn About
Solving an Absolute Value Equation and Checking for Extraneous Solutions
Learn how to solve absolute value equations with extraneous solutions. Absolute value of a number is the positive value of the number. For instance, the absolute value of 2 is 2 and the absolute value of -2 is also 2. To solve an absolute value problem, we first isolate the absolute value
From playlist Solve Absolute Value Equations
How To Solve an Absolute Value Equation and Test Our Solutions when They Do Not Work
Learn how to solve absolute value equations with extraneous solutions. Absolute value of a number is the positive value of the number. For instance, the absolute value of 2 is 2 and the absolute value of -2 is also 2. To solve an absolute value problem, we first isolate the absolute value
From playlist Solve Absolute Value Equations
Learn how to evaluate left and right hand limits of a function
👉 Learn how to evaluate the limit of an absolute value function. The limit of a function as the input variable of the function tends to a number/value is the number/value which the function approaches at that time. The absolute value function is a function which only takes the positive val
From playlist Evaluate Limits of Absolute Value
First Derivative Test Intervals of Increasing Decreasing & Relative Extrema Calculus 1 AB
EXAMPLES AT 5:42 11:17 18:44 27:58 35:23 Learning goals 1. Determine intervals on which a function is increasing or decreasing. 2. Apply the First Derivative Test to find relative extrema of a function. Check out http://www.ProfRobBob.com, there you will find my lessons organized by clas
From playlist Calculus
Concavity Inflection Second Derivative Test 4 Examples Calculus 1 AB
Visual Analysis 4:23 Examples at 21:40 29:47 42:16 Even though this is corrected, I still forgot the power of 2 on the cosine in the denominator at minute 46:41 I have a full set of notes for Concavity: Testing for Concavity, Look at some graphical examples of where concavity may change
From playlist Calculus
Calculus: Maxima and Minima, Part 2
This is the second of three videos discussing Briggs/Cochran Calculus Section 4.1: Maxima and Minima. In this video, I discuss local maxima, local minima, and critical points. We work through several examples of finding extreme values on graphs as well as computing critical points.
From playlist Calculus
Domain of a Rational Expression 1
u15_L1_T1_we1 Domain of a Rational Expression 1
From playlist Developmental Math 3
Kyle Simpsons talk for Forward 2 attempts to “pull out the crazy” from JavaScript. He wants to help you produce cleaner, more elegant, more readable code, then inspire people to contribute to the open source community. JavaScript Training from NewCircle: http://crcl.to/72rru http://forwa
From playlist Software Development Lectures
Answering Tricky JS Interview Questions
This talk will cover some basic JS subtleties and fill in some knowledge gaps w/r/t: - Hoisting and variable scope - Expressions v. statements - Undeclared v. undefined v. null - Equality comparisons - How to properly walk out if an interviewer asks you to do fizz buzz - Much, much more (t
From playlist JavaScript
Ex: Find Values Where a Rational Expression is Undefined
This video provides three examples of how to determine the values where a rational expression is undefined.
From playlist Simplifying Rational Expressions
Calculus 1: Lecture 3.1 Extrema on an Interval
This is a real classroom Calculus 1 lecture. In this lecture I covered section 3.1 which is Extrema on an Interval. We talked about critical numbers, the extreme value theorem, and various other things. Lots of examples were done. I hope this helps someone.
From playlist Calculus 1 Full Lectures
How To Create A Calculator App In JavaScript | Session 02 | #app | #javascript | #programming
Don’t forget to subscribe! Let's JavaScript. This project series is about creating a single operation Calculator App In JavaScript. This calculator app will allow you to add, subtract multiply and divide 2 numbers with or without a decimal point. Our calculator app will also have A backs
From playlist Create A Single Operation Calculator App In JavaScript
Evaluate the limit for a value of a function
👉 Learn how to evaluate the limit of an absolute value function. The limit of a function as the input variable of the function tends to a number/value is the number/value which the function approaches at that time. The absolute value function is a function which only takes the positive val
From playlist Evaluate Limits of Absolute Value