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**Feeds**

Question

How to find the coordinate of the point on (180) contour line when y(max)?

How to find the coordinate of the point on (180) contour line when y(max)? Code of the contour line: clear x = 0:0.1:3; y = ...

9 månader ago | 2 answers | 0

### 2

answersQuestion

How to calculate the area between X-Axis, Y-Axis and the (60) contour line?

How to calculate the area between X-Axis, Y-Axis and the (60) contour line? Code of the contour line: x = 1:0.2:2; y = 1:0....

9 månader ago | 1 answer | 0

### 1

answerQuestion

Find maximum of function with 3 variables

How to find maximum of function with 3 variables? -1<= x1 x2 x3 <=1 function =78.4802 + 5.9976*x1 - 1.94506*x2- 1.7211*x3 - 6....

ungefär 3 år ago | 1 answer | 0

### 1

answerQuestion

How to put "."after variables in a function for mesh command

nc=10; [D,delta_z] = meshgrid(((-1:1/nc:1)*2.5+7.5)*1.68,((-1:1/nc:1)*0.4+0.6)*1.68); y1=(7497*D)/3125 - (97253*delta_z)/20000...

ungefär 3 år ago | 1 answer | 0

### 1

answerQuestion

Display 3D graph for a function

Display a 3D graph for a function x3 = 0; nc=10; y1 = 43.5943 - 12.5921*x1 + 4.08342*x2 + 3.6128*x3 + 14.4637* x1^2 + 9.3*x...

ungefär 3 år ago | 1 answer | 0

### 1

answerQuestion

Define relationship between variables in an equation

An equation has two variables d and t. eqn = ((t - 21/2)*(d/2 - (20898604612049288806642049279907*t)/70957580590508366543483568...

mer än 3 år ago | 1 answer | 0

### 1

answerQuestion

define discrete variables in GA Matlab R2012b

Can I define discrete variables in GA in Matlab R2012b? If it is possible and how to do it?

nästan 5 år ago | 0 answers | 0

### 0

answersQuestion

How to define discrete variables in GA (genetic algorithm)

Hi, I need to optimize a function has four variables by GA tool (genetic algorithm). Two variables are continuous like: x1=...

nästan 5 år ago | 1 answer | 0

### 1

answerQuestion

How to set ytickslabel in graph version R2011b

Hi, The graph has ylim([-1 1]) in y axis. Values are displayed -1 -0.5 0 0.5 1 in y axis How to set ytickslabel in graph...

mer än 7 år ago | 1 answer | 0

### 1

answerQuestion

Define a variable from an equation

Hi, I have an equation with x and y are variable and a, b and d are constant. <</matlabcentral/answers/uploaded_files/6377...

nästan 8 år ago | 2 answers | 0

### 2

answersQuestion

Fitting an equation with x,y variables and b, d constant.

Hi, I have an equation. <</matlabcentral/answers/uploaded_files/63504/KakaoTalk_20161117_112325194.png>> x=[10,50,100...

nästan 8 år ago | 2 answers | 0

### 2

answersQuestion

How to define a constant velocity of second order system in a limited time in Simulink

Hi all, I want to simulate a model (Mass, Spring and Damper) which is considered a second order system. A Mass was applied...

ungefär 8 år ago | 0 answers | 0

### 0

answersQuestion

Input string to a matrix or a cell

Hi, I have a string and want to input it to a matrix or a cell. string: name matrix: A(2,3) cell: data{2}(2,4); C...

mer än 8 år ago | 1 answer | 0

### 1

answerQuestion

Calculate area between y = 0 and the curve plotted by discontinuos data

Hi, I have a curve like graph. I want to calculate the area between y = 0 and the curve ploted by discontinuous data. <<...

mer än 8 år ago | 1 answer | 0

### 1

answerQuestion

About color of multi curve

Hi, I want to change color of curves automatically for i=1:3 plot(x,y,'color');hold on; end color=b...

mer än 8 år ago | 1 answer | 0

### 1

answerQuestion

How to display y=0 in figure

Hi, I want to display like the figure. <</matlabcentral/answers/uploaded_files/43879/figure.gif>> How to display ...

mer än 8 år ago | 5 answers | 0

### 5

answersQuestion

How to divide a matrix by a number

Hi, I have a function like: r=[0.1:0.1:10]; E=1/(r^3); How to get value E with correct command. I try several ...

mer än 8 år ago | 1 answer | 0

### 1

answerQuestion

Plot figure with 3 matrix 1D x y z like a surface

Three matrices are x y z coordinates for a figure. ... x=[1:10] y=[11:20] z=[21:30] ... Which command can be used ...

nästan 9 år ago | 1 answer | 0

### 1

answerQuestion

Insert a string in a code to export a figure

Hi, This is code: ... name='location'; options.Format = 'tiff'; hgexport(gcf, 'name.tif', options); .... ...

nästan 9 år ago | 1 answer | 0

### 1

answerQuestion

Insert a string into code

I want to insert a string in to code: ... name='time'; filename = 'name_v1.txt'; ... Can the 'time' be inserted ...

nästan 9 år ago | 1 answer | 0

### 1

answerQuestion

How to get value from cell

I have a cell like this: ... 'ITEM:' '0' 'ITEM:' '75' 'ITEM:' '-0.0001174' '2.1593e-005' '-10' 'IT...

nästan 9 år ago | 2 answers | 0

### 2

answersQuestion

Read file txt and input value in Matlab

Hi, I want to read txt file and input value in Matlab. I use "dlmread" but it is always error: "Error using dlmread (line ...

nästan 9 år ago | 2 answers | 1

### 2

answersQuestion

Solve eqn and get real part of solution in MatLab R2011b

I use MatLab R2011b and want to solve an eqn and get the real part of solution. This is the code: ... s=solve(y); ....

ungefär 9 år ago | 1 answer | 0

### 1

answerQuestion

Solve eqn and get real solution

I want to solve an eqn and get the real solution. This is the code: ... s=solve(R_); ... And this is solution: s =...

ungefär 9 år ago | 2 answers | 0

### 2

answersQuestion

Optimize function (find the minimun value of function of s, s is variable)

I have a function of (s): Rl_f = 1/((- (5731525556631357*s^6)/147573952589676412928 + (21989195558260875*s^5)/18446744073...

ungefär 9 år ago | 1 answer | 0

### 1

answerQuestion

About Fit a Two-Term Exponential Model

Hi, 1. What does 'StartPoint' mean in this code: f = fit(x,y,'exp1','StartPoint',[1,2]) plot(f,x,y) 2. The blue and bla...

ungefär 9 år ago | 0 answers | 0

### 0

answersQuestion

Run a short code in a big program

Hi! I have a big program about 250 rows. It is included 3 parts. Part 1 is from 1-60 rows, Part 2 is from 61-150, Part 3 is t...

ungefär 9 år ago | 1 answer | 0

### 1

answerQuestion

Read data in log.lammps from LAMMPS to Matlab

I simulate by LAMMPS and have a log.lammps file. Now I want to use data from this file to Matlab. How can I read data to Matla...

ungefär 9 år ago | 1 answer | 0

### 1

answerQuestion

Display µm not correct in figure in Matlab

I use Matlab 2011b I have code for figure like this: ... set(0,'DefaultAxesFontName', 'Times New Roman') set(0,'DefaultAxesF...

nästan 10 år ago | 3 answers | 0