Vector calculus | Mathematical notation | Differential operators
Del, or nabla, is an operator used in mathematics (particularly in vector calculus) as a vector differential operator, usually represented by the nabla symbol ∇. When applied to a function defined on a one-dimensional domain, it denotes the standard derivative of the function as defined in calculus. When applied to a field (a function defined on a multi-dimensional domain), it may denote any one of three operators depending on the way it is applied: the gradient or (locally) steepest slope of a scalar field (or sometimes of a vector field, as in the Navier–Stokes equations); the divergence of a vector field; or the curl (rotation) of a vector field. Strictly speaking, del is not a specific operator, but rather a convenient mathematical notation for those three operators that makes many equations easier to write and remember. The del symbol (or nabla) can be interpreted as a vector of partial derivative operators; and its three possible meanings—gradient, divergence, and curl—can be formally viewed as the product with a scalar, a dot product, and a cross product, respectively, of the "del operator" with the field. These formal products do not necessarily commute with other operators or products. These three uses, detailed below, are summarized as: * Gradient: * Divergence: * Curl: (Wikipedia).
Factoring every numerator and denominator when multiplying rational expressions
Learn how to multiply rational expressions. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. To multiply two rational expressions, we use the distributive property to multiply both numerators togethe
From playlist Multiply Rational Expressions (Trinomials) #Rational
Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the fraction. The same rule applies when we want to divide by a r
From playlist How to Divide Rational Expressions #Rational
Dividing two rational expressions by factoring
Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the fraction. The same rule applies when we want to divide by a r
From playlist How to Divide Rational Expressions #Rational
Multiplying rational expressions
Learn how to multiply rational expressions. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. To multiply two rational expressions, we use the distributive property to multiply both numerators togethe
From playlist Multiply Rational Expressions (Trinomials) #Rational
Multiplying two rational expressions with polynomials
Learn how to multiply rational expressions. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. To multiply two rational expressions, we use the distributive property to multiply both numerators togethe
From playlist Multiply Rational Expressions (Trinomials) #Rational
Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the fraction. The same rule applies when we want to divide by a r
From playlist How to Divide Rational Expressions #Rational
How to use factoring when multiplying two rational expressions
Learn how to multiply rational expressions. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. To multiply two rational expressions, we use the distributive property to multiply both numerators togethe
From playlist Multiply Rational Expressions (Trinomials) #Rational
Classify a polynomial then determining if it is a polynomial or not
👉 Learn how to determine whether a given equation is a polynomial or not. A polynomial function or equation is the sum of one or more terms where each term is either a number, or a number times the independent variable raised to a positive integer exponent. A polynomial equation of functio
From playlist Is it a polynomial or not?
Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the fraction. The same rule applies when we want to divide by a r
From playlist How to Divide Rational Expressions #Rational
Calculus 3 Chain Rule: Two Independent Variables
Calculus 3 Chain Rule: Two Independent Variables
From playlist Calculus 3
The Gradient of Quadratic Cost — Topic 76 of Machine Learning Foundations
#MLFoundations #Calculus #MachineLearning In this video, we derive by hand the partial derivatives of quadratic cost with respect to the parameters of a simple single-point regression model. This derivation is essential to understanding how machines learn via gradient descent. There are
From playlist Calculus for Machine Learning
Gradients in Machine Learning with Jon Krohn
The gradient captures the partial derivative of cost with respect to all of our machine learning model's parameters. To come to grips with it, Jon Krohn carries out a regression on individual data points and derives the partial derivatives of quadratic cost. He then gets into what it means
From playlist Talks and Tutorials
mod-05 lec-05 Capillary Fluid (incompressible) Flow and Hydrodynamic Lubrication
Fundamentals of Industrial Oil Hydraulics and Pneumatics by Prof. R.N. Maiti,Department of Mechanical Engineering,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Kharagpur: Fundamentals of Industrial Oil Hydraulics and Pneumatics (CosmoLearning Mechanical Engineering)
A geometric approach to study non conservative systems by Partha Guha
DATES Monday 23 May, 2016 - Saturday 23 Jul, 2016 VENUE Madhava Lecture Hall, ICTS, Bangalore APPLY This program is first-of-its-kind in India with a specific focus to provide research experience and training to highly motivated students and young researchers in the interdisciplinary field
From playlist Summer Research Program on Dynamics of Complex Systems
Calculus 3 Multi-variable Chain Rule Harder Example Two Independent Variables
Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Calculus 3 Multi-variable Chain Rule Harder Example Two Independent Variables
From playlist Calculus
The Chain Rule for Partial Derivatives — Topic 73 of Machine Learning Foundations
#MLFoundations #Calculus #MachineLearning In this video, I assume that you already are familiar with the chain rule for full derivatives — (as is covered, for example, in my video titled "The Chain Rule" earlier in this ML Foundations series). Here, we’ll extend that chain rule theory to
From playlist Calculus for Machine Learning
Electromagnetic Theory by Prof. D.K. Ghosh,Department of Physics,IIT Bombay.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Bombay: Electromagnetic Theory
The Gradient of Mean Squared Error — Topic 78 of Machine Learning Foundations
#MLFoundations #Calculus #MachineLearning In this video, we first derive by hand the gradient of mean squared error (a popular cost function in machine learning, e.g., for stochastic gradient descent. Secondly, we use the Python library PyTorch to confirm that our manual derivations corre
From playlist Calculus for Machine Learning
Dividing two rational expression with a lot of factoring by multiplying
Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the fraction. The same rule applies when we want to divide by a r
From playlist How to Divide Rational Expressions #Rational