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Accept 20 answers given by other contributors
Awarded to ly on 18 Aug 2021
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Domanda
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 = ...
3 mesi fa | 2 risposte | 0
2
risposteDomanda
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....
3 mesi fa | 1 risposta | 0
1
rispostaDomanda
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....
oltre 2 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
oltre 2 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
oltre 2 anni fa | 1 risposta | 0
1
rispostaDomanda
Define relationship between variables in an equation
An equation has two variables d and t. eqn = ((t - 21/2)*(d/2 - (20898604612049288806642049279907*t)/70957580590508366543483568...
quasi 3 anni fa | 1 risposta | 0
1
rispostaDomanda
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?
oltre 4 anni fa | 0 risposte | 0
0
risposteDomanda
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=...
oltre 4 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
quasi 7 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
oltre 7 anni fa | 2 risposte | 0
2
risposteDomanda
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...
oltre 7 anni fa | 2 risposte | 0
2
risposteDomanda
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...
oltre 7 anni fa | 0 risposte | 0
0
risposteDomanda
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...
quasi 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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. <<...
quasi 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
circa 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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 ...
circa 8 anni fa | 5 risposte | 0
5
risposteDomanda
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 ...
circa 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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 ...
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
Insert a string in a code to export a figure
Hi, This is code: ... name='location'; options.Format = 'tiff'; hgexport(gcf, 'name.tif', options); .... ...
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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 ...
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
How to get value from cell
I have a cell like this: ... 'ITEM:' '0' 'ITEM:' '75' 'ITEM:' '-0.0001174' '2.1593e-005' '-10' 'IT...
oltre 8 anni fa | 2 risposte | 0
2
risposteDomanda
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 ...
oltre 8 anni fa | 2 risposte | 1
2
risposteDomanda
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); ....
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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 =...
oltre 8 anni fa | 2 risposte | 0
2
risposteDomanda
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...
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
oltre 8 anni fa | 0 risposte | 0
0
risposteDomanda
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...
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
oltre 8 anni fa | 1 risposta | 0
1
rispostaDomanda
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...
oltre 9 anni fa | 3 risposte | 0
3
risposte
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