Answered

Fourier Series for thin airfoil theory

trapzDataFore = DF(1,:)*cos(n*theta*pi/180) % change to radian trapzDataAft = DF(1,:)*cos(n*theta*pi/180) % change to radian...

Fourier Series for thin airfoil theory

trapzDataFore = DF(1,:)*cos(n*theta*pi/180) % change to radian trapzDataAft = DF(1,:)*cos(n*theta*pi/180) % change to radian...

13 days ago | 0

Answered

find the x value

syms x y = piecewise(x>=8,10*sqrt(x)+20,0<=x<=8,5*x + 20,x<0,10) fplot(y,'linewidth',2); axis([-5 5 0 50]) Try using piecewis...

find the x value

syms x y = piecewise(x>=8,10*sqrt(x)+20,0<=x<=8,5*x + 20,x<0,10) fplot(y,'linewidth',2); axis([-5 5 0 50]) Try using piecewis...

13 days ago | 0

Answered

"readmatirx" does not read the expected data?

T2 = readmatrix("T2.csv",'Sheetname',"Range","B1:AY1") % empty ??? T2 = readmatrix("T2.csv",'Sheetname',"Range","A1:E1") % all ...

"readmatirx" does not read the expected data?

T2 = readmatrix("T2.csv",'Sheetname',"Range","B1:AY1") % empty ??? T2 = readmatrix("T2.csv",'Sheetname',"Range","A1:E1") % all ...

14 days ago | 0

Answered

I'm trying to figure out why after i run this code I'm not getting any messages and no plots are popping up

clear all num_fft=1024; dt=1; f= [ 0 0 0 0 1 0 0.5 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0] h=[ 2.76077e-006 0.000746586 0.0407636...

I'm trying to figure out why after i run this code I'm not getting any messages and no plots are popping up

clear all num_fft=1024; dt=1; f= [ 0 0 0 0 1 0 0.5 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0] h=[ 2.76077e-006 0.000746586 0.0407636...

14 days ago | 0

Answered

Solution of symbolic fourth order polynomial equation

A = 2; B = 1.4; C = 3 syms L eqn = L^4 + A*L^2 - B*L + C == 0 sol = double(vpasolve(eqn,2)) Try using vpasolve

Solution of symbolic fourth order polynomial equation

A = 2; B = 1.4; C = 3 syms L eqn = L^4 + A*L^2 - B*L + C == 0 sol = double(vpasolve(eqn,2)) Try using vpasolve

16 days ago | 0

Answered

3D interpolation using interp1

z1 = rand(1,100); m = 10; n = 15; u = rand(10,15,100); z2 = linspace(0.2,1,200); for i = 1:m for j = 1:n fo...

3D interpolation using interp1

z1 = rand(1,100); m = 10; n = 15; u = rand(10,15,100); z2 = linspace(0.2,1,200); for i = 1:m for j = 1:n fo...

16 days ago | 0

Answered

Error in execution?

clear clc x=[0 2 4 6 8]; y=[0 2 4 6 8]; T=[100 90 80 70 60; 85 64.49 53.50 48.15 50; 70 48.90 38.43 35.03 40; 55 38.78 30...

Error in execution?

clear clc x=[0 2 4 6 8]; y=[0 2 4 6 8]; T=[100 90 80 70 60; 85 64.49 53.50 48.15 50; 70 48.90 38.43 35.03 40; 55 38.78 30...

17 days ago | 0

Answered

How to plot a convergence graph for a double sum?

T=0; %terms used in series M=15; N=15; q_m=zeros(M,1); qq_m=zeros(M,1); x=2.5; y=3.5; for n=1:N for m=1:M T=T+...

How to plot a convergence graph for a double sum?

T=0; %terms used in series M=15; N=15; q_m=zeros(M,1); qq_m=zeros(M,1); x=2.5; y=3.5; for n=1:N for m=1:M T=T+...

18 days ago | 1

Answered

Divide transfer function get "Model I/O dimensions must agree." Please help

clc; clear; num1 = {1, 1, 1, 1, 1, 1, 1}; num2 = {-4, -4, -4, -4, -4, -4, -4}; den1 = {[10 1], [10 1], [10 1], [10 1], [10 1...

Divide transfer function get "Model I/O dimensions must agree." Please help

clc; clear; num1 = {1, 1, 1, 1, 1, 1, 1}; num2 = {-4, -4, -4, -4, -4, -4, -4}; den1 = {[10 1], [10 1], [10 1], [10 1], [10 1...

19 days ago | 0

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Answered

How I can fix this problem

clear all clear all clc i = 1;LL = 8:2:20; for N=8:2:20 tn = 7; M = 7; L = 5; attSR = -40; attPU = -60; % dB Nt = N; ...

How I can fix this problem

clear all clear all clc i = 1;LL = 8:2:20; for N=8:2:20 tn = 7; M = 7; L = 5; attSR = -40; attPU = -60; % dB Nt = N; ...

20 days ago | 1

Answered

How to solve a single nonlinear equation with parameter variations?

taue=0.95; L=5; kk=pi/(2*L); % change this to different variable hac=1.46; gamma=0.95; A0=0.01; %Initial guess w=0:...

How to solve a single nonlinear equation with parameter variations?

taue=0.95; L=5; kk=pi/(2*L); % change this to different variable hac=1.46; gamma=0.95; A0=0.01; %Initial guess w=0:...

22 days ago | 0

Answered

how to fix the array?

% x is the 1*476 array and t is also a 1*476 array meaning time f_up = 100; x= rand(1,476); t = x; f = (-f_up:0.1:f_up); w...

how to fix the array?

% x is the 1*476 array and t is also a 1*476 array meaning time f_up = 100; x= rand(1,476); t = x; f = (-f_up:0.1:f_up); w...

22 days ago | 1

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Answered

How to find volume of a curve [f(x)] which is rotated along y-axis?

%Volume along x-axis clc clear all syms x y fx = 3*cos(0.4*x+pi)%;x^(1/2);% 0<=x<=4 xmin = -5;%input('Enter minimum value...

How to find volume of a curve [f(x)] which is rotated along y-axis?

%Volume along x-axis clc clear all syms x y fx = 3*cos(0.4*x+pi)%;x^(1/2);% 0<=x<=4 xmin = -5;%input('Enter minimum value...

22 days ago | 0

Answered

why solve function does not return answer?

syms b eq1 = 1/tan(b)== 4;% example sol=solve(eq1,b) Solves uses an equation.

why solve function does not return answer?

syms b eq1 = 1/tan(b)== 4;% example sol=solve(eq1,b) Solves uses an equation.

23 days ago | 0

Answered

how save the calculated values from the loop one after the other in a vector ?

Vektor_c_Ab(i) = c_Ab; Vektor_t(i) = t; Vektor_F(i) = F; Use the loop iterator index variable

how save the calculated values from the loop one after the other in a vector ?

Vektor_c_Ab(i) = c_Ab; Vektor_t(i) = t; Vektor_F(i) = F; Use the loop iterator index variable

24 days ago | 1

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Answered

how can i plot this piceise function?

syms x y = piecewise(x< 6.7,1299*x,x>=6.7 & x< 12, 83*x,x>= 12,-1200*x); plot(subs(y,x,[0:25]))

how can i plot this piceise function?

syms x y = piecewise(x< 6.7,1299*x,x>=6.7 & x< 12, 83*x,x>= 12,-1200*x); plot(subs(y,x,[0:25]))

29 days ago | 0

Answered

Adding Linestyle to ezplot in Matlab

syms x f = inline('x.^2*exp(-x)', 'x'); d = inline('x.^3', 'x'); ezplot(f, [0 10]); hold on L = ezplot(d, [0 10]); L.LineSt...

Adding Linestyle to ezplot in Matlab

syms x f = inline('x.^2*exp(-x)', 'x'); d = inline('x.^3', 'x'); ezplot(f, [0 10]); hold on L = ezplot(d, [0 10]); L.LineSt...

29 days ago | 0

Answered

Starting and ending multiple plots at the same point on the same figure

Use axis after the plot axis([0 12000 0 0.8])

Starting and ending multiple plots at the same point on the same figure

Use axis after the plot axis([0 12000 0 0.8])

29 days ago | 0

Answered

Contour Graph/Plot displays edgy function

x = -10:.1:10; y = -10:.1:10; [X,Y] = meshgrid(x,y); mu = 0.1; phi = mu*(X./(X.^2+Y.^2)); [U,V] = gradient(phi,0.1,0.1); f...

Contour Graph/Plot displays edgy function

x = -10:.1:10; y = -10:.1:10; [X,Y] = meshgrid(x,y); mu = 0.1; phi = mu*(X./(X.^2+Y.^2)); [U,V] = gradient(phi,0.1,0.1); f...

30 days ago | 2

Answered

Error using + Matrix dimensions must agree. I want to find the value of Mt. Kindly help me clear the error.

a=1.5; % make good guess s=0.01; N=5; wd=0.002906; d=5; u=2; % guess i = 1; a1=a-((N-1)*(wd+s)):(wd+s):a; b1=a-((N-1)...

Error using + Matrix dimensions must agree. I want to find the value of Mt. Kindly help me clear the error.

a=1.5; % make good guess s=0.01; N=5; wd=0.002906; d=5; u=2; % guess i = 1; a1=a-((N-1)*(wd+s)):(wd+s):a; b1=a-((N-1)...

1 month ago | 0

Answered

How can I display only the fprintf without the error shown and using "function"

disp(iqcategory(112.5)) function [category] = iqcategory(score) %by Manav Divekar, 2021-10-28 %if the given score is greate...

How can I display only the fprintf without the error shown and using "function"

disp(iqcategory(112.5)) function [category] = iqcategory(score) %by Manav Divekar, 2021-10-28 %if the given score is greate...

1 month ago | 0

Answered

viscircles and imfindcircles problem

A = imread('coins.png'); imshow(A); % you forgot this line in your code [centers, radii, metric] = imfindcircles(A,[15 30]); ...

viscircles and imfindcircles problem

A = imread('coins.png'); imshow(A); % you forgot this line in your code [centers, radii, metric] = imfindcircles(A,[15 30]); ...

1 month ago | 0

Answered

How to display fit equation on plot?

stress = [0;0.0464;0.1940;0.4962;0.5040;0.5566;0.6040;0.6260;0.6240;0.6100;0.5880;0.5720]; % e.g values strain = [0;0.2220;0.36...

How to display fit equation on plot?

stress = [0;0.0464;0.1940;0.4962;0.5040;0.5566;0.6040;0.6260;0.6240;0.6100;0.5880;0.5720]; % e.g values strain = [0;0.2220;0.36...

1 month ago | 0

Answered

How to read & display an excel file (using a button to select the file)?

%if true [N TT R] =xlsread('C:\Users\t.xlsx','sheet_3','A1:AA4');% Try to change the out It seems you have the excel f...

How to read & display an excel file (using a button to select the file)?

%if true [N TT R] =xlsread('C:\Users\t.xlsx','sheet_3','A1:AA4');% Try to change the out It seems you have the excel f...

1 month ago | 0

Answered

Getting an FFT signal into a for loop.

clc; clear; n=0:1000; fs=8000; % Sampling frequency, Hz nfft=1024; % Number of samples nf=fs*(-nfft/2:nfft/2-1)./nfft; % es...

Getting an FFT signal into a for loop.

clc; clear; n=0:1000; fs=8000; % Sampling frequency, Hz nfft=1024; % Number of samples nf=fs*(-nfft/2:nfft/2-1)./nfft; % es...

1 month ago | 1

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Answered

how could i sub in the y value to find the x value for the function

k1=0.000358; k2=0.000158; ca0=4.89; x=1:10000; f = @(x) 0.000358.*4.89.*x./(1+0.000358.*x+0.000158.*x+0.000158*0.000358*x.^2...

how could i sub in the y value to find the x value for the function

k1=0.000358; k2=0.000158; ca0=4.89; x=1:10000; f = @(x) 0.000358.*4.89.*x./(1+0.000358.*x+0.000158.*x+0.000158*0.000358*x.^2...

1 month ago | 0

Answered

Undefined function 'postlin' for input arguments of type 'double'.

t = -10:0.01:10; f = inline('4*hardlim(t+4)-poslin(t+4)+2*poslin(t)-poslin(t-2)-2*hardlim(t-2)', 't') subplot(2,2,1); plot(t,...

Undefined function 'postlin' for input arguments of type 'double'.

t = -10:0.01:10; f = inline('4*hardlim(t+4)-poslin(t+4)+2*poslin(t)-poslin(t-2)-2*hardlim(t-2)', 't') subplot(2,2,1); plot(t,...

1 month ago | 0

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Answered

Why isnt plot working for this code?

p = 0.002378*(1-0.0000068756*2000)^4.2561; v=100; AR = 7; q = 0.5*p*v^2; n = 1/cos(45); e = 1.78*(1-0.045*AR^0.68)-0.64; k...

Why isnt plot working for this code?

p = 0.002378*(1-0.0000068756*2000)^4.2561; v=100; AR = 7; q = 0.5*p*v^2; n = 1/cos(45); e = 1.78*(1-0.045*AR^0.68)-0.64; k...

1 month ago | 0

Answered

Errorbar vertical and horizontal

x = [1 2 3 4 5 6 7 8 9 10]; y = [1 2 3 4 5 6 7 8 9 10]; err = [1 2 3 1 2 3 1 2 3 1]; errorbar (x,y,'XData',er...

Errorbar vertical and horizontal

x = [1 2 3 4 5 6 7 8 9 10]; y = [1 2 3 4 5 6 7 8 9 10]; err = [1 2 3 1 2 3 1 2 3 1]; errorbar (x,y,'XData',er...

1 month ago | 0

Answered

How can I import an excel workbook's SHEET TITLE?

for kk=1:1:4 x=xlsread('Excel Title.xlsx', kk, 'A2:A11'); y=xlsread('Excel Title.xlsx', kk, 'B2:B11'); sheets = ...

How can I import an excel workbook's SHEET TITLE?

for kk=1:1:4 x=xlsread('Excel Title.xlsx', kk, 'A2:A11'); y=xlsread('Excel Title.xlsx', kk, 'B2:B11'); sheets = ...

1 month ago | 0