derivative

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How to get a vector field that maps the slopes of an equation

Hey so I\'m reading this article by Chris Hecker where he has an image of a Parabola surrounded by the a vector field of it\'s derivative:[详细]

2023-04-13 02:13 分类：问答
Matlab - error in difference approximation

We want to study the error in the difference approximation for forward difference and central difference, tabulate the error for 开发者_如何学运维h=[1.E-3 1.E-4 1.E-5 1.E-6 1.E-7 1.E-8 1.E-9 1.E-10 1.[详细]

2023-04-04 01:29 分类：问答
Checking the gradient when doing gradient descent

I\'m trying to implement a feed-forward backpropagating autoencoder (training with gradient descent) and wanted to verify that I\'m calculating the gradient correctly. This tutorial suggests calculati[详细]

2023-03-17 05:49 分类：问答
Calculating derivative and integration using matlab

I am trying to find second derivative of a function, but while initializing my symbols i am getting the following error:[详细]

2023-03-02 23:15 分类：问答
Java estimate a derivative at a point

I am currently writing a calculator application. I am trying to write a derivative estimator into it. The formula below is a simple way to do it. Normally on paper you would use the smallest h possibl[详细]

2023-02-22 04:41 分类：问答
C# - Finding Peaks within a Given Width via Quadratic Fit

I\'m working on an algorithm to find peaks in a List object. I\'d thought up what I thought was a good (or good enough) algorithm for doing this by looking at a point and it\'s neighbors and, if it wa[详细]

2023-02-17 05:59 分类：问答
How does one calculate the rate of change (derivative) of streaming data?

I have a stream of data that trends over time.How do I determine the rate of change usingC#? It\'s been a long time since calculus class, but now is the 开发者_如何转开发first time I actually need it[详细]

2023-02-06 22:08 分类：问答
Can I enhance one LGPL library based of implementation of another? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-01-27 17:46 分类：问答
3D Perlin noise analytical derivative

I am currently implementing a 3D Perlin noise bump mapping using Shader Model 4 (DirectX 10 HLSL). Generating the noise itself is not a big problem (there are tons of tutorials and codes around) but w[详细]

2023-01-27 02:23 分类：问答
how to use Savitzky-Golay smooth coefficient to calculate derivatives

Savitzky-Golay smoothing filter can be used to calculate the coefficients so as to calculate the smoothed y-values by applying the coefficients to the adjacent values. The smoothed curve looks great.[详细]

2023-01-13 07:12 分类：问答