# Melda Harlova

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**Content Feed**

Question

Problem solving DE neural network

Hi, I need a help with this solution expecially with the last line mesh(x1,x2,y). Error: Unrecognized function or variable 'x1...

3 years ago | 0 answers | 0

### 0

answersQuestion

Differential equation and problem with minmax

Hi everyone, I have an error in that line: net=newff(minmax(p),[3,1],{'tansig','purelin'},'trainlm') And this error 'minmax'...

3 years ago | 1 answer | 0

### 1

answerQuestion

Problem with differential equation net

Hello, I have a problem with using net in following code. Thank you in advance. clear all x=-1:0.1:3; z=x; net=newff(minm...

3 years ago | 0 answers | 0

### 0

answersQuestion

Problem with threee differential equations

Can someone help me with these three equatons. They have to solve with matlab code. Here are : 1. y'' - y = 0 y(0)=0 y(1)=...

3 years ago | 0 answers | 0

### 0

answersQuestion

Problem with statistics and line of regression

Hello, I dont know if the place for my question is here, but i will be thankful if someone help me. I have a problem with deci...

3 years ago | 0 answers | 0

### 0

answersQuestion

Line of regression statistics problem

Hello, I dont know if the place for my question is here, but i will be thankful if someone help me. I have a problem with deci...

3 years ago | 0 answers | 0

### 0

answersQuestion

Method of finite differences

Hello, i have to solve this with a method of finite differences x'' = -2x'(t) – 2x(t) + e^(-t) + sin(2t) t ϵ [0,4]; x(0) = 0,...

3 years ago | 0 answers | 0

### 0

answersQuestion

Problem with the shooting method

Helloo, Can someone help me with that code in matlab: function main y0=0; y0=fsolve(@fun1,y0); x0=[0.6,y0]; [t,x]=ode45(...

3 years ago | 0 answers | 0

### 0

answersQuestion

How to solve matrix exponent equation

Hello, I will be thankful if someone helps me. Here is my task: Reduce to a system and solve a matrix exponent equation under ...

3 years ago | 0 answers | 0

### 0

answersQuestion

Runge Kutta 4th order

Hello, Here is the task that i have to solve: y1' = y2 y2'=f(x,y1,y2) with y1(0)=0 and y2(0)=y20 where f(x,y1,y2) = -axy2-...

3 years ago | 2 answers | 0

### 2

answersQuestion

Runge Kutta for system of differential equations

Hello, I have to solve the following system with method of Runge Kutta: y1' = y2 y2'=f(x,y1,y2) with y1(0)=0 and y2(0)=y20 ...

3 years ago | 0 answers | 0