VBBV
PEC
MATLAB enthusiast , Mechanical engineer (MeMe) :-)
Content Feed
已回答
Generate list of frequencies evenly spaced in logarithmic plot
F = linspace(0.2,628,100) semilogy(F)
Generate list of frequencies evenly spaced in logarithmic plot
F = linspace(0.2,628,100) semilogy(F)
13 hours 前 | 0
已回答
Face Error "Input arguments must be numeric or objects which can be converted to double' while plotting Contour
contour(x1,x2,S11(x1,x2))
Face Error "Input arguments must be numeric or objects which can be converted to double' while plotting Contour
contour(x1,x2,S11(x1,x2))
2 days 前 | 0
| 已接受
已回答
Not enough input arguements
anz=height(matrix) Put this line after *readtable* function where you read the data from Excel. The input to the function h...
Not enough input arguements
anz=height(matrix) Put this line after *readtable* function where you read the data from Excel. The input to the function h...
4 days 前 | 0
已回答
How can I use custom equation in cftool?
In the custom equation, function box , replace the x with z and define the equation as in your case in the box below
How can I use custom equation in cftool?
In the custom equation, function box , replace the x with z and define the equation as in your case in the box below
4 days 前 | 0
| 已接受
已回答
can someone assist I am struggling to convert the DHI DNI and GHI from W/m^2 to kWh/m^2
% solar irradiation on a HORIZONTAL SURFACE Cn = 0.7; % Clearance index I0 = 1353; % Solar constant latit...
can someone assist I am struggling to convert the DHI DNI and GHI from W/m^2 to kWh/m^2
% solar irradiation on a HORIZONTAL SURFACE Cn = 0.7; % Clearance index I0 = 1353; % Solar constant latit...
5 days 前 | 0
已回答
"Arrays have incompatible sizes for this operation" with for loop in integral2
input = @(y,s) y; N_it=10; output=cell(1, N_it); output{1}=input; density = @(z,t,s) exp( -(z.^2)./(2.*(s-t)) ./ (sqrt(2...
"Arrays have incompatible sizes for this operation" with for loop in integral2
input = @(y,s) y; N_it=10; output=cell(1, N_it); output{1}=input; density = @(z,t,s) exp( -(z.^2)./(2.*(s-t)) ./ (sqrt(2...
6 days 前 | 0
已回答
Too many input arguments error when cell2mat and mean functions are used
bb = cell2mat(iniclu(i,1:count(i))); Use a ( ) in place of { }
Too many input arguments error when cell2mat and mean functions are used
bb = cell2mat(iniclu(i,1:count(i))); Use a ( ) in place of { }
6 days 前 | 1
已回答
I want to build a system that can find and display the polynomial equation for degree 1 and 2 using Newton Forward Divided Difference Interpolation Method but I got an error.
Replace *Text* with *Value* as Value is recognised property
I want to build a system that can find and display the polynomial equation for degree 1 and 2 using Newton Forward Divided Difference Interpolation Method but I got an error.
Replace *Text* with *Value* as Value is recognised property
6 days 前 | 0
已回答
Why won't my function display any of the required text?
%FinalGrade = FinalMark;
Why won't my function display any of the required text?
%FinalGrade = FinalMark;
7 days 前 | 0
| 已接受
已回答
I I wrote a command but for some reason it only prints the enthalpy value of water
There is a missing semicolon in this line, which makes it to print for each iteration in for loop H_water = (hf_w + hs_w); % a ...
I I wrote a command but for some reason it only prints the enthalpy value of water
There is a missing semicolon in this line, which makes it to print for each iteration in for loop H_water = (hf_w + hs_w); % a ...
7 days 前 | 1
已回答
Need help to solve following problem.
X_ISMD = 995152.969208341; Y_ISMD = 996113.117131325; X_WGS84 =randn(172,1); Y_WGS84 =randn(172,1); for i = 1:172 D1(i...
Need help to solve following problem.
X_ISMD = 995152.969208341; Y_ISMD = 996113.117131325; X_WGS84 =randn(172,1); Y_WGS84 =randn(172,1); for i = 1:172 D1(i...
7 days 前 | 1
| 已接受
已回答
How to simplify this script
Use abs percentage for error calculation percentage = abs((delta_y_ori-delta_y_raw)/delta_y_ori)*100;
How to simplify this script
Use abs percentage for error calculation percentage = abs((delta_y_ori-delta_y_raw)/delta_y_ori)*100;
7 days 前 | 0
| 已接受
已回答
how to make the contour line more curvy
xdata % your x data ydata % your y data zdata % your z data v = min(min(zdata)):1:max(max(zdata)) % add finer step size for ...
how to make the contour line more curvy
xdata % your x data ydata % your y data zdata % your z data v = min(min(zdata)):1:max(max(zdata)) % add finer step size for ...
9 days 前 | 0
已回答
Error code: "Index in position 2 exceeds array bounds (must not exceed 1)." when running code for two-element spring system
K(i,i) = K(i,i) + y(1,1); K(i,j) = K(i,j) + y(1,2);
Error code: "Index in position 2 exceeds array bounds (must not exceed 1)." when running code for two-element spring system
K(i,i) = K(i,i) + y(1,1); K(i,j) = K(i,j) + y(1,2);
11 days 前 | 0
已回答
Please I need help on Translating the following formulae into statements: 1) V=10(1− e0.2t ) (2) y =[e3t +t2 sin(4t)]cos2 (3t) Assume t as the row vector
t = 0:0.1:10; x = 10*exp(-0.5*t).*sin(3*t+2); y =exp(3*t)+t.^2 .* sin(4*t).*(cos(3*t)).^2 v = 10*(1-exp(0.2*t))
Please I need help on Translating the following formulae into statements: 1) V=10(1− e0.2t ) (2) y =[e3t +t2 sin(4t)]cos2 (3t) Assume t as the row vector
t = 0:0.1:10; x = 10*exp(-0.5*t).*sin(3*t+2); y =exp(3*t)+t.^2 .* sin(4*t).*(cos(3*t)).^2 v = 10*(1-exp(0.2*t))
11 days 前 | 0
已回答
I keep getting the error using '/'.
condition=readmatrix('cases.xlsx','Sheet',1,'Range','A2:C65');
I keep getting the error using '/'.
condition=readmatrix('cases.xlsx','Sheet',1,'Range','A2:C65');
11 days 前 | 0
已回答
Indexing Error Using 'dsolve'
syms t k1 k2 M A0 A(t) dA_dt = 1 * (20 - A) - 3 * diff(A,t) == 0; % Solving for A(t) with different initial conditions A_s...
Indexing Error Using 'dsolve'
syms t k1 k2 M A0 A(t) dA_dt = 1 * (20 - A) - 3 * diff(A,t) == 0; % Solving for A(t) with different initial conditions A_s...
11 days 前 | 0
已回答
I wrote a piece of code about Calculating the Enthalpy of H2, O2, and Water and the machine reports the error "Array indices must be positive integers or logical values".
R = 8.314; % Ideal Gas Constant T = 300 : 50 : 1000; % Temperature range from 300 K to 1000 K with increments of 50 % Create T...
I wrote a piece of code about Calculating the Enthalpy of H2, O2, and Water and the machine reports the error "Array indices must be positive integers or logical values".
R = 8.314; % Ideal Gas Constant T = 300 : 50 : 1000; % Temperature range from 300 K to 1000 K with increments of 50 % Create T...
14 days 前 | 1
已回答
How to workaround this problem with angle?
You have real and imaginary componens for variable Fi, so use only real angles %total range of omega delta_omega=20; %interv...
How to workaround this problem with angle?
You have real and imaginary componens for variable Fi, so use only real angles %total range of omega delta_omega=20; %interv...
14 days 前 | 1
已回答
Error that X is used but not initalized.
syms I O = 14.6*10^(-3)*I % define this way O(I) = 14.6*10^(-3)*I
Error that X is used but not initalized.
syms I O = 14.6*10^(-3)*I % define this way O(I) = 14.6*10^(-3)*I
15 days 前 | 0
已回答
pause() function not running in realtime
dt = 0.05 change the timestep size and try
pause() function not running in realtime
dt = 0.05 change the timestep size and try
16 days 前 | 0
已回答
Why the last err is a row vector of all zeros instead of a single zero?
clear;clc u=[1 2 0.1 0.2 3 4 30 40 50 60]; b=[1.1 1.2 0.11 0.21 33 44 31 41 51 61]; a1 = u(1:2); r1 = u(3:4); f1 = ...
Why the last err is a row vector of all zeros instead of a single zero?
clear;clc u=[1 2 0.1 0.2 3 4 30 40 50 60]; b=[1.1 1.2 0.11 0.21 33 44 31 41 51 61]; a1 = u(1:2); r1 = u(3:4); f1 = ...
16 days 前 | 0
| 已接受
已回答
equation code not getting right answer
% Given values %AInfinity = 1; %AInlet = 6.5; MInlet = 0.5; MInfinity = 2; gamma = 1.4; a = (1 + ((gamma-1)/2)* MInfinit...
equation code not getting right answer
% Given values %AInfinity = 1; %AInlet = 6.5; MInlet = 0.5; MInfinity = 2; gamma = 1.4; a = (1 + ((gamma-1)/2)* MInfinit...
16 days 前 | 0
| 已接受
已回答
How to apply loop on following case?
Try using the cell array for the testdata you gave data = load('datatest.mat'); X_p = {data.IP_OPT, data.IS_OPT, data.RH_OPT}...
How to apply loop on following case?
Try using the cell array for the testdata you gave data = load('datatest.mat'); X_p = {data.IP_OPT, data.IS_OPT, data.RH_OPT}...
17 days 前 | 1
| 已接受
已回答
the matrix only works till days= 16 then when the days=17 or bigger the output is 0 on all the values in the matrix
Cn = 0.7; % Clearance index I0 = 1353; % Solar constant latitude = -34.005133; % Latitude of the location...
the matrix only works till days= 16 then when the days=17 or bigger the output is 0 on all the values in the matrix
Cn = 0.7; % Clearance index I0 = 1353; % Solar constant latitude = -34.005133; % Latitude of the location...
17 days 前 | 0
已回答
Any way to remove the for loop and make the code more efficient here?
N=400; pair = rand(10,4); [I,J] = meshgrid(1:N,1:N); for r = 1:10 n = pair(r,1); m = pair(r,2); p = pair(r,3);...
Any way to remove the for loop and make the code more efficient here?
N=400; pair = rand(10,4); [I,J] = meshgrid(1:N,1:N); for r = 1:10 n = pair(r,1); m = pair(r,2); p = pair(r,3);...
17 days 前 | 1
| 已接受
已回答
trrapz function not working in matlab R2023b, how can I fix this?
totalA = trapz(x,lift,1);
trrapz function not working in matlab R2023b, how can I fix this?
totalA = trapz(x,lift,1);
17 days 前 | 0
已回答
Plotting multiple figures using subplot
subplot(3,2,1) plot(rand(2),rand(2)); title('figure 1') subplot(3,2,2) plot(rand(2),rand(2));title('figure 2') subplot(3,2,3...
Plotting multiple figures using subplot
subplot(3,2,1) plot(rand(2),rand(2)); title('figure 1') subplot(3,2,2) plot(rand(2),rand(2));title('figure 2') subplot(3,2,3...
22 days 前 | 0
已回答
Need help with resolving the error sym>tomupad
<https://in.mathworks.com/matlabcentral/answers/310042-how-to-convert-symbolic-expressions-to-transfer-functions> Go through ...
Need help with resolving the error sym>tomupad
<https://in.mathworks.com/matlabcentral/answers/310042-how-to-convert-symbolic-expressions-to-transfer-functions> Go through ...
22 days 前 | 0