Community Profile # JingChong Ning

Last seen: etwa ein Monat vor Aktiv seit 2021

#### Statistiken

• Abzeichen anzeigen

#### Content Feed

Anzeigen nach

Frage

How to display matrices in cell array in a table?
I have a cell array, and each element of the cell array is a matrix. But when I use cell2table to show the array, the table only...

etwa 2 Monate vor | 2 Antworten | 0

### 2

Antworten

Frage

Solve inequality in MATLAB (with answer probably be x could be any real number)
I am trying to set up a solver for a symbolic matrix so its eigenvalue could be positive. This is my matrix [x^2+2 1; 1 1]. sym...

3 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

Warning: Error updating FunctionLine. for fplot
I am trying to create a function that summed up a bunch of other functions. y1 = 0; addi = 0.05; aoamid = (2*0.6*sqrt(1-((y1...

4 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

Same calcuation, but hand-result is different from code result
I have this code: aoamid = (2*0.6*sqrt(1-((0)/4)^2)/(pi^2)+0.6/(8*pi)) CLnew = (aoamid+0.01)/(2*sqrt(1-((0)/4)^2)/(pi^2)+1/(8*...

4 Monate vor | 2 Antworten | 0

### 2

Antworten

Frage

Error: Operator '*' is not supported for operands of type 'function_handle'.
This is my code: cb = 1/5.25; %reverse of aspect ratio cla = 2*pi; %the slope of lift vs aoa aa = 5*pi/180; % radiant value o...

4 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

The "solve" system is not solving my variables
I have a for loop creating a super equation that is the sum of a group of equations that could use variables A1 to A7. Each loop...

4 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

Why my symbolic result of eigenvalue doesn't match my numeric result?
I have a set of three points, . As well as a matrix [2, 0, 0] [0, 2, 4*z2] [0, 4*z2, 4*y2 + 2] I need to fi...

4 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

How to present this equation for plotting
I have this equation: that I need to input into matlab for plot into a surface. However, I am not sure whether I should use p...

4 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

Why my function is not vectorized
This is my code: dv = [1 5 10 20 50]; vc = sqrt(0.8*200*2*365*24*3600)/1000; figure for i = 1:5 dvc = dv(i); f = @...

5 Monate vor | 2 Antworten | 0

### 2

Antworten

Frage

Unexpected output from simplify()
I have this code, looking for the derivative of this equation syms mp dv vc c expr2 = (1-((c^2)/(vc^2))*(exp(dv/c)-1))/(exp(dv...

5 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

Cut off a Curve created by "curve fit"
I have 3 data point that I need to curve fit a 5th order polynomial to. I used the "fit()" function, but the homework requiremen...

5 Monate vor | 1 Antwort | 0

### 1

Antwort

Frage

How do you integrate a very long equation on MATLAB?
I have a very long equation (yuse*p) that I need to integrate over. However, as you can see, the code is not returning my values...

9 Monate vor | 2 Antworten | 0

### 2

Antworten

Frage

I get "empty syms" solution when solving inequalities
I am trying to solve the following inequality. I have done similar inequality and they all worked out fine, could anyone tell me...

mehr als ein Jahr vor | 1 Antwort | 0

Antwort