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Readme
numerical derivatives of one-variable functions
Installation via npm:
npm install deriv
Requiring the function takes one line:
var deriv = require("deriv");
Evaluating a derivative also:
x_prime = deriv(function(x){return x*x}, 3, 0.1);
console.log(x_prime)
Output:
{ res: 5.999999999999166, err: 0.15000000000437436 }
The first parameter is the function for which the derivative should be evaluated. The function should have only one parameter, expecting a numeric value. The second parameter x
is the value at which the derivative should be calculated, whereas h
is an appropriately chosen step size. type
is an optional string parameter, which can take either the value forward
or central
. Specifically, this module implements the algorithms used in the numerical differentiation functions of the GSL library and described in the book "S.D. Conte and Carl de Boor, Elementary Numerical Analysis: An Algorithmic Approach, McGraw-Hill, 1972".
FAQs
numerical derivatives of one-variable functions
The npm package deriv receives a total of 4 weekly downloads. As such, deriv popularity was classified as not popular.
We found that deriv demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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