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Videos uploaded by user “virtuallymath”
virtuallymath.com: how to find a probability density function
 
05:58
In this video you learn how to turn a function into a probability density function. The steps are outlines in detail, and at the end, you see a graph of the PDF for improved understanding.
Views: 30623 virtuallymath
virtuallymath.com: how to find the speed of a bob at the low point in a pendulum
 
08:28
In this video you learn how to use conservation of energy to find the speed of a bob at a low point in a pendulum.
Views: 3059 virtuallymath
virtuallymath.com: gradient, direction of maximum increase and decrease
 
08:57
In this video you learn how to use the gradient to find the direction of maximum increase and decrease.
Views: 1038 virtuallymath
virtuallymath.com: binomial cumulative distribution function
 
09:54
In this video you learn how to construct a binomial cumulative distribution function using a graph, and a table.
Views: 1704 virtuallymath
virtuallymath.com: graphing points in 3d, example 2
 
11:17
In this video you learn how to graph points in 3d. You learn how to draw coordinate axes, and plots points as ordered triples.
Views: 10390 virtuallymath
virtuallymath.com: finding a missing vector
 
13:13
In this video you learn how to find a missing vector given three other vectors and the resultant. This kind of exercise is common in physics.
Views: 2372 virtuallymath
virtuallymath.com: components of displacement vector
 
07:25
In this video you learn how to find the components of a displacement vector.
Views: 2983 virtuallymath
virtuallymath.com: understanding how to find the slope of an inverse function
 
12:28
In this video you learn how to find the slope of the inverse of a function.
Views: 2147 virtuallymath
virtuallymath.com: finding the dot products of unit vectors
 
08:46
In this video you learn how to find the dot products of various unit vectors with themselves.
Views: 709 virtuallymath
virtuallymath.com: i j k unit vectors, drawing and understanding the purpose
 
11:45
In this video you learn how to draw i,j, and k unit vectors, and what purpose they serve.
Views: 347 virtuallymath
virtuallymath.com: probability distribution function for two tosses of a coin
 
10:29
In this video you learn how to derive the probability distribution function for the number of heads within two tosses of a coin.
Views: 1239 virtuallymath
virtuallymath.com: three tosses of a coin probability function
 
11:48
In this video you learn how to derive the probability function for the number of heads in three tosses of a coin.
Views: 32 virtuallymath
virtuallymath.com: difference between scalar and vector quantities
 
06:26
In this video you learn what the difference is between a vector and scalar quantity. To make the example visual, you also learn what the difference between distance and displacement is.
Views: 33 virtuallymath
virtuallymath.com: finding the equation of a sphere from center and radius
 
05:48
In this video you learn how to find the equation of a sphere from it's center and radius.
Views: 74 virtuallymath
virtuallymath.com: domain of a function from AP calc
 
07:58
In this video you learn how to find the domain of a composition of two functions. It's taken from an AP kind of question.
Views: 8 virtuallymath
virtuallymath.com: introduction to 3d coordinate systems
 
12:26
In this video you learn how to construct a 3d coordinate system, and how to mark points on the coordinate axes, and coordinate planes.
Views: 347 virtuallymath
vituallymath.com: initial point, vector components
 
08:56
In this video you learn how to find the terminal point of a given if you're given the initial point, and the components of a vector.
Views: 13 virtuallymath
virtuallymath.com: finding the midpoint of a 3d segment
 
08:46
In this video you learn how to find the midpoint of a 3d line segment, and how to plot the segment in 3d space.
Views: 251 virtuallymath
virtuallymath.com: plotting points in 3d
 
16:42
In this video, you learn how to plot points in three dimensional space.
Views: 118 virtuallymath
virtuallymath.com: example of a binomial probability distribution
 
09:47
In this video you learn how to derive a probability function for a binomial random variable. This example deals with the number of boys in a family of three kids.
Views: 96 virtuallymath
virtuallymath.com: how to find the speed of a falling object
 
06:47
In this video, you learn how to find the speed of an object as it strikes the ground using conservation of energy.
Views: 94 virtuallymath
virtuallymath.com: how to solve a work rate problem
 
08:19
In this video, you learn how to solve a work rate problem, and how to interpret the solution physically.
Views: 38 virtuallymath
virtuallymath.com: finding a gradient for a function of three variables
 
07:09
In this video you learn how to find a gradient for a function of three variables
Views: 70 virtuallymath
virtuallymath.com: understanding how to use the unit circle with vectors
 
08:43
In this video you learn how to find a vector given its length and the angle it makes with respect to the positive x axis.
Views: 799 virtuallymath
virtuallymath.com: 3d distance formula
 
09:04
In this video you learn how to find the distance between two points located in three dimensional space.
Views: 90 virtuallymath
virtuallymath.com: finding the slope of an inverse of a function
 
11:03
In this video you learn how to find the slope of an inverse function.
Views: 66 virtuallymath
virtuallymath.com gradient with tangent line
 
08:58
In this video you learn how to find a tangent line using a gradient.
Views: 51 virtuallymath
virtuallymath.com getting a PDF from a CDF
 
10:19
In this video you learn how to get a probability density function from a cumulative distribution function. This example deals with the exponential distribution.
Views: 53 virtuallymath
virtuallymath.com: finding a gradient for a hyperbola
 
09:06
In this video you learn how to find a gradient vector, and how to plot the gradient vector and the associated level curve.
Views: 130 virtuallymath
virtuallymath.com: equation of sphere from diameter
 
11:06
In this video you learn how to find the equation of a sphere from a diameter.
Views: 99 virtuallymath
virtuallymath.com: tension in rope
 
06:45
In this video you learn how to find the tension in a rope when a weight is suspended from it.
Views: 33 virtuallymath
virtuallymath.com: equation of sphere , case of tangent plane
 
07:54
In this video you learn how to find the equation of a sphere when it's tangent to a plane.
Views: 108 virtuallymath
virtuallymath.com: how to find a unit vector
 
09:16
In this video, you learn how to find a unit vector. You see the steps outlined, and we also review how to build a coordinate system, and graph a vector in the plane.
Views: 111 virtuallymath
virtuallymath.com: vectors in component form
 
08:04
In this video you learn how to express, given an initial and terminal point, a vector in component form, and how to draw it translated to the origin.
Views: 246 virtuallymath
virtuallymath.com: how to draw a negative scalar multiple of a vector
 
07:27
In this video you learn how to draw a negative scalar multiple of a vector. The process is shown step by step and color coded so you can see more easily what to do.
Views: 491 virtuallymath
virtuallymath.com: SAT exercise on conversions of units
 
04:17
In this video you learn how to solve a common type of exercise
Views: 33 virtuallymath
virtuallymath.com: how to solve a vector equation
 
06:46
In this video you learn how to solve a basic vector equation. The key to doing this well is to treat the vectors like variables and move them around in a similar way so it's fast and familiar.
Views: 4979 virtuallymath
virtuallymath.com: fining a vector from an angle and a length
 
07:50
In this video you learn how to find a vector given its length and the angle it makes with respect to the positive x axis.
Views: 29 virtuallymath
virtuallymath.com: how to find the gradient of a function
 
10:40
In this video you learn how to find the gradient of a function, how to graph the gradient in the x y plane, how to plot level curves, and how to evaluate the gradient at two different points.
Views: 281 virtuallymath
virtuallymath.com: probability density function of a continous random variable
 
12:53
In this video, you learn how to find the probability distribution function of a continuous random variable.
Views: 55 virtuallymath
virtuallymath.com: gradient vector, simple example
 
06:24
In this video you learn how to find a gradient vector at a point, and how to sketch a picture of it in the coordinate plane together with a level curve of the function.
Views: 166 virtuallymath
virtuallymath.com: finding a probability function for a joint distribution
 
13:42
In this video you learn how to find a joint probability function for two random variables.
Views: 287 virtuallymath
virtuallymath.com: drawing a positive scalar mutiple of a vector
 
08:13
In this video you learn how to draw a positive scalar multiple of a vector. The process is shown step by step.
Views: 41 virtuallymath
virtuallymath.com: center and sphere radius, example with fractions
 
10:31
In this video you learn how to find the center and radius of a sphere with fraction as the numbers involved. You have to use the process of completing the square.
Views: 72 virtuallymath
virtuallymath.com: parabola standard equation
 
07:03
In this video you learn how to find the standard equation of a parabola.
Views: 27 virtuallymath
viruallymath.com: finding a vector from its length and angle
 
08:23
In this video you learn how to find a vector given its length and the angle it makes with respect to the positive x axis.
Views: 81 virtuallymath
virtuallymath.com: vector components example with fractions
 
13:20
In this video you learn how to express a vector in component form. This example uses points expressed as fractions. You also learn how to scale axes in a convenient way to make the picture drawing process easier and more neat.
Views: 132 virtuallymath
virtuallymath.com: gradient at a point
 
06:24
In this video you learn how to find a gradient vector at a point, and how to sketch the gradient.
Views: 25 virtuallymath
virtuallymath.com: equation of circle in standard form
 
06:03
In this video you learn how to write an equation of a circle in standard form so you can see the center and radius easily.
Views: 29 virtuallymath
virtuallymath.com: finding a directional derivative
 
14:54
In this video you learn how to find a directional derivative.
Views: 21 virtuallymath

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