derivative calculator

ObjectiveHigher mathematics is a basic course for every college student to learn, and it may be the most easily forgotten knowledge after the test.I racked my brains when I was studying high numbers, but I never knew why I was learning. Life and work are basically not used, even in the computer industry and the financial industry, can directly use the high number of places also less, academic and practical application is really far from the difference.However, the R language opens the door to a

Where is the Win10 calculator? Three ways to open the Win10 calculator: graphic introduction, win10 Calculator The brand-new windows 10 system has brought about many new features and changes. Among them, the position of the win10 calculator has changed a lot, so many netizens think that the win10

Copy Code code as follows: function Getderivativebyformulaandxdata ($formula, $x _data) { $xArray = Explode ("+", $formula); $Derivative = 0; foreach ($xArray as $x _record) { $tmpArray = Explode ("x^", $x _record); if (count ($tmpArray) = 2) { $coefficient = $tmpArray [0]== "" 1: $tmpArray [0]; $exp = $tmpArray [1]; } constant else { $coefficient = $tmpArray [0]; $exp = 0; } $Derivative

The code is as follows: function Getderivativebyformulaandxdata ($formula, $x _data) {$xArray = Explode ("+", $formula);$Derivative = 0;foreach ($xArray as $x _record) {$tmpArray = Explode ("x^", $x _record);if (count ($tmpArray) = = 2) {$coefficient = $tmpArray [0]== ""? 1: $tmpArray [0];$exp = $tmpArray [1];}constantelse {$coefficient = $tmpArray [0];$exp = 0;}$Derivative + = $coefficient * $exp *pow ($x

Copy CodeThe code is as follows: function Getderivativebyformulaandxdata ($formula, $x _data) { $xArray = Explode ("+", $formula); $Derivative = 0; foreach ($xArray as $x _record) { $tmpArray = Explode ("x^", $x _record); if (count ($tmpArray) = = 2) { $coefficient = $tmpArray [0]== ""? 1: $tmpArray [0]; $exp = $tmpArray [1]; } constant else { $coefficient = $tmpArray [0]; $exp = 0; } $Derivative + = $coef

Small talk about derivative, gradient and extremum[reprint please specify source] Http://www.cnblogs.com/jerryleadRemember that when you do math in high school, you often ask for the tangent of the curve. See the shape such as the function, regardless of the 3,721 direct derivation, this is the slope of the tangent line, and then get the tangent of the place.The university also studied the surface tangent and normal vector of the method, the deviation

Http://forum.ubuntu.com.cn/viewt... 212d00a409bcea7ee95Original article title: incomplete Ubuntu Chinese derivative edition and installation of grub with no disk in WindowsAuthor: miles away I. Why should we use the Ubuntu derivative version?Non-official Ubuntu derivative edition:Because the situations vary, the original Ubuntu has many imperfections.Kubuntu is

Derivation of Contents with reverse conduction thought [hide] 1 Introduction 2 Example 2.1 Example 1: target function of weight matrix in sparse coding 2.2 Example 2: Smooth terrain in sparse coding L1 sparse penalty Function 2.3 example 3:ica reconstruction cost 3 Chinese translator introduction In the section of the reverse conduction algorithm, we introduce the method of using the reverse conduction algorithm to find the gradient in the sparse self encoder. It has been proved that the method

The derivative of a function at a certain point describes the change rate of the function near this point. (How much dy changes are caused by tiny DX changes) For an implicit function f (x) (X = {x0, X1 ,..., Xn}), because the change rate and direction in all directions of X are different, for example, it can be changed linearly in the x0 direction, if we want to know the variation direction and speed of f (x) near X in the direction of X1, how shoul

"/>Code:X=-10:0.001:10; %sigmoid and its derivative sigmoid=1./(1+exp (x)); Sigmoidder=exp (-X)./((1+exp (x)). ^2) Figure;plot (x,sigmoid, ' R ', X, Sigmoidder, ' b--'), axis ([ -10 10-1 1]), grid on;title (' sigmoid function (solid line) and its derivative (dashed lines) '), Legend (' Sigmoid original function ', ' sigmid derivative '); set ( GCF, ' numbertitle

From: http://www.cnblogs.com/jerrylead/archive/2011/03/09/1978280.html The author makes it very clear Remember that the tangent of the curve is often required when you are doing a math problem in high school. If you see a function like this, the slope of the tangent is obtained regardless of the result obtained by the derivation of November 21, and the tangent at the position is obtained. After going to college, I learned how to find the tangent of the curved surface and the method of th

In step 1th, open the Word2010 document window and switch to the Insert Ribbon. Click the formula button (not the Formula Drop-down button) in the symbol group, as shown in Figure 1. Figure 1 Click the formula button Step 2nd, create a blank formula frame in the Word2010 document, and in the formula Tools/Design Ribbon, click the Derivative symbol button in the structure group. Derivative symbols,

implicit function + derivative definition ideas @ (Calculus) There is an impulse to see the equation is to solve the equation of expression, and then according to test instructions is to calculate the integral or the derivative, thought that is the solution. Admittedly, the problem of solving an expression is, of course, the first to be solved. But when the feeling is not going down, to rational judgment

Http://www.linuxidc.com/Linux/2014-06/102621.htmUbuntu and derivative version users how to install SMARTGIT/HG 6.0.0 [Date: 2014-06-03] Source: Imcn.me Linux [Font: Big Small] SMARTGIT/HG is an open source, cross-platform, Git-and Mercurial-capable SVN graphics client that runs on Windows, Linux, and MAC OS X systems. The latest version available is SMARTGIT/HG 6.0.0, which has recently been released.Ubuntu and

Install Linux Kernel 4.15 RC1 on Ubuntu, Linux Mint, Elementary OS, and other Ubuntu derivative versionsInstallation instructions: Since it is very difficult to compile Linux kernel, Canonical has packaged all kernel versions into the deb software package and provided them to everyone using Ubuntu or Ubuntu-based systems through its kernel.ubuntu.com repository. The following command applies to all Ubuntu, Linux Mint, Elementary OS, and other Ubuntu

When learning the derivative, the teacher explains this, assuming y=f (x), the derivative process of the point (X0,Y0) is as follows:Set DX is a very small number= Y0+dy=f (X0+DX)= Dy=f (X0+DX)-y0Then at this point the derivative a=dy/dxThis assumes that the DX is very small, so x0 to (X0+DX) is short, can be approximated to a straight line, then DY/DX can be reg

38: Calculating the derivative function of a polynomial Total time limit: 1000ms Memory Limit: 65536kB Describe It is a very easy task to calculate the derivative of a polynomial. Given a function f (x), we use F ' (x) to denote its derivative function. We use X^n

??? Preface for more information about MySQL derivative PerconaServer, please search ~ The prospects for the most open-source software under the control of Oracle are worrying ~ How many mysql derivative versions can be used? Percona is used as the production database of oschina. I'm not afraid! Haha! Definitely! Because I ? ?? Preface for more information about MySQL d