In query languages, path expressions identify an object by describing how to navigate to itin some graph (possibly implicit) of objects. For example, the path expression p.Manager.Home.City might refer the city of residence of someone's manager.Path expressions have been extended to support regular expression-like flexibility.XPath is an example of a path expression language. In concurrency control, path expressions are a mechanism for expressing permitted sequences of execution. For example, a path expression like " {read}, write" might specify that either multiple simultaneous executions of read or a single execution of write but not both are allowed at any point in time. It is important to know that the path expressions are a mechanism for the synchronization of processes at the monitor level in the software. That provides a clear and structured approach to the description of shared data and the coordination and communication between concurrent processes. This method is flexible in its ability to express timing, and can be used in different ways. In addition, path expressions are useful for process synchronization for two reasons: first, the close relationship between stream expressions and regular expressions that simplify the task of writing and reasoning about programs that use this synchronization mechanism. Second, synchronization in many concurrent programs in a finite state, and therefore can be adequately described by regular expressions. For precisely the same reasons, path expressions are useful for controlling the behavior of complicated asynchronous circuits. In fact, the finite state assumption may be even more reasonable at the hardware level than at the monitor level. Path expressions provide a high level of descriptive synchronization that aids in the prevention and detection of design errors in complex systems and overcomes some of the dangers, such as certain forms of coding errors. (Wikipedia).
11_6_1 Contours and Tangents to Contours Part 1
A contour is simply the intersection of the curve of a function and a plane or hyperplane at a specific level. The gradient of the original function is a vector perpendicular to the tangent of the contour at a point on the contour.
From playlist Advanced Calculus / Multivariable Calculus
Evaluate an expression with three variables
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
I still don't get it evaluating expressions
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
Evaluate an equation by substitution
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
Evaluating an expression with one variable ex 7, w^2 - 3w + 10; w = 4
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
How to evaluate an expression three terms
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
Evaluate an expression with one variable ex2, 2x + 3 - 2; x=5
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
Evaluating an expression with one variable ex 6, (3p - 5)^2; p = 3
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
Evaluating an expression with one variable ex 8, (-x^2 +1)/3; x = 3
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
Using Regular Expressions for Web Request Routing in Golang
Example of how to use regex for request routing in Go web servers
From playlist Archive - Cloud Computing
[Lesson 22] QED Prerequisites: The Electromagnetic Field Tensor
This is a REPOST of a lecture with video repairs and some annoying errors corrected! To reinforce our efforts to put the 4-potential at center stage we do a second development, this time founded in Lorentz invariance ala Landau and Lifshitz "Classical Theory of Fields." Then, we show how
From playlist QED- Prerequisite Topics
The Principle of Least Action: Derivation of Newton's Second Law
This video provides an introduction to the principle of least action and shows how Newton's Second Law emerges as a constraint for particle moving in one dimension. This video is inspired by Richard Feynman's lecture on the Principle of Least Action, which I highly recommend. You can help
From playlist Pen and Paper
GoGaRuCo 2013 - Beneath the Surface: Regular Expressions in Ruby
By Nell Shamrell Many of us approach regular expressions with a certain fear and trepidation, using them only when absolutely necessary. We can get by when we need to use them, but we hesitate to dive any deeper into their cryptic world. Ruby has so much more to offer us. This talk showca
From playlist GoGaRuCo 2013
MATH2018 Lecture 3.4 Line Integrals
Line integrals arise in calculating the work needed to move a particle through a force field. In this lecture we show how to calculate line integrals using the tools of vector field theory.
From playlist MATH2018 Engineering Mathematics 2D
Quantum Mechanics and the Principle of Least Time
In this short video I would like to tell you about the pioneering work of Pierre de Fermat, who discovered that light is the laziest object in the universe, always preferring to take the path that minimises the amount of time spent travelling between two points. But perhaps what is even mo
From playlist General Physics
Live CEOing Ep 491: Language Design in Wolfram Language [Multiway Computation]
In this episode of Live CEOing, Stephen Wolfram discusses upcoming improvements and features to the Wolfram Language. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twitch channel of Stephen Wolfram
From playlist Behind the Scenes in Real-Life Software Design
Live CEOing Ep 572: Language Design in Wolfram Language [Multicomputation]
In this episode of Live CEOing, Stephen Wolfram discusses upcoming improvements and features to the Wolfram Language. If you'd like to contribute to the discussion in future episodes, you can participate through this YouTube channel or through the official Twitch channel of Stephen Wolfram
From playlist Behind the Scenes in Real-Life Software Design
Evaluating an expression with two variables ex 5, (bc)^2; b = 4; c = 8
π Learn how to evaluate mathematics expressions. A mathematics expression is a finite combination of numbers and symbols formed following a set of operations or rules. To evaluate a mathematics expression means to obtain the solution to the expression given the value(s) of the variable(s)
From playlist Simplify Expressions Using Order of Operations
This is our group submission for #some2 I worked with TomΓ‘Ε‘ SlΓ‘ma who made all of the animations in this video. Check out his channel for more beautifully animated math videos: https://www.youtube.com/c/Tom%C3%A1%C5%A1Sl%C3%A1maYT Follow me on Tiktok! https://www.tiktok.com/@sackvideo
From playlist Summer of Math Exposition 2 videos