Community Profile

photo

madhan ravi


Last seen: Today
3 491 total contributions since 2018

Communication through MATLAB is always better than arguing.

madhan ravi's Badges

  • First Review
  • First Submission
  • Thankful Level 4
  • 12 Month Streak
  • Ace
  • Knowledgeable Level 4
  • Promoter
  • Commenter
  • Revival Level 3
  • Solver
  • First Answer

View details...

Contributions in
View by

Answered
How to use ode45 for a row vector
<https://www.mathworks.com/matlabcentral/answers/1971-when-using-ode45-or-similar-functions-what-is-the-benefit-of-using-anonymo...

4 dagar ago | 1

Answered
I'm having trouble with the differential equation example:
function dydt = lineary1(t,y) % should be saved as lineary1.m dydt = y(1); And in another file named "Experiment.m" [t,y] = o...

11 dagar ago | 0

Answered
"Non enough input arguments" to solve non linear equations
Name of the script should be different than that of the function.

11 dagar ago | 0

| accepted

Answered
How to add a constant to a symbolic array element by element?
They are not negative numbers but probably represented in scientific notations. format longg % at the beginning Because the a...

12 dagar ago | 0

Answered
Extracting values within a matrix
Use logical operators ">" "<" and "find()"

12 dagar ago | 0

Answered
make rectangular with vectors
plot(a,b,'-ok') % look here plot(b,c,'-ok') plot(c,d,'-ok') plot(d,a,'-ok')

13 dagar ago | 0

Answered
Problem with find string in array
Wanted = ismember(cellstr(Mfg),'bmw')

13 dagar ago | 1

| accepted

Answered
arc question about implementing angle using linspace
if you are looking to convert radians to degrees use the function rad2deg() function

16 dagar ago | 0

Answered
Custom Simulink IO block
According to the error message you need to have: MATLAB/SupportPackages/R2019b/toolbox/matlab/hardware/supportpackages/arduinoi...

18 dagar ago | 0

Answered
matlab give me error when i use fzero to calculate zero of function
Just go to the file location and rename the file as *myFzero.m* for example.

19 dagar ago | 1

| accepted

Answered
Error: too many outputs
function Y = ForwardSub(L,b) % you forgot to assign the output in the function definition

ungefär en månad ago | 0

Answered
Raising a matrix to the power from 0 to 50
Wanted = arrayfun(@(x)A^x,0:50,'un',0); celldisp(Wanted)

ungefär en månad ago | 0

Answered
not enough input arguments
<https://www.mathworks.com/help/matlab/matlab_prog/run-functions-in-the-editor.html>

ungefär en månad ago | 0

Answered
Numbering table and selecting value
Try replacing Name==result with strcmp(crossSectionInfo.Name,result)

ungefär en månad ago | 0

Answered
How to replace the 5 in my vector with decreasing numbers like 5,4,3,2,1
Z=num2cell(x); Z(cellfun(@(zx)zx==5,Z))={5:-1:1} celldisp(Z)

ungefär en månad ago | 0

Answered
plotting with respect to time
C1=x0; C2=x_dot+Wn*x0; x = @(t) (C1+C2*t)*exp(-Wn*t) fplot(x,[0,10])

ungefär en månad ago | 0

| accepted

Answered
How to combine two cell arrays?
newcellarray = [cellarray2,cellarray1]

ungefär en månad ago | 0

| accepted

Answered
Storing double output into a single cell array
zeros() to cell() and A{n,k} = selectedlocal

ungefär en månad ago | 1

| accepted

Answered
How to find the element of a number if that number were to be placed in an ordered list?
Between = [find(ismember(list1,fix(2.5))), find(ismember(list1,ceil(2.5)))]

ungefär en månad ago | 0

Answered
How to solve for T2? it is giving an error when I try solve
syms T2 TempCumene = vpasolve ((((281.4749/3600)*Cp_b)*(T2-414.95) == Q_b),T2) %temp for cumene outlet in K

ungefär en månad ago | 0

| accepted

Answered
How to create an integral function? Trying to solve Cp_b between 2 numbers
clear all %%Calculate Benzene Duty Q %From Perry's table 2-153 values for Benzene C1_b = 162940; %in J/kmol*K C2_...

ungefär en månad ago | 0

Answered
Help me pls I don't know matlab
<https://www.mathworks.com/matlabcentral/answers/297463-how-to-create-an-mxn-matrix-with-a-for-loop#accepted_answer_230016>

ungefär en månad ago | 0

Answered
Log scale x axis?
set(gca, 'XScale','log') % at the end To turn off the warning simply use dots before arithmetic operators .^ .* ./

ungefär en månad ago | 0

| accepted

Answered
Why is this so slow?
Instead of loop why not simply use *cumsum()* ?

ungefär en månad ago | 0

| accepted

Answered
How to store " first_element " values?
A = [ 1 1 1 1 2 3 4 4 4 ; 1 2 3 4 5 5 5 5 5]; [first_element,end_element] = deal(zeros(size(A,1),1)); % preallocate for k = 1:...

ungefär en månad ago | 1

| accepted

Answered
Why can't a variable holding an equation be used to make a function handle?
I would simply use matlabFunction() as sir Walter says but maybe you have the follwing in mind: func = @(x) eqn(x)

ungefär en månad ago | 0

| accepted

Answered
My function will not work to calculate the 'Cumene inlet temperature' section
func= (Mc*Cp(T))*(T-T1) - (Qb)

ungefär en månad ago | 0

| accepted

Answered
join cell arrays together
cellstr(string(x)+string(y))

ungefär en månad ago | 0

| accepted

Answered
Undefined function 'cos' for input arguments of type 'tf'.
syms s % forgot to add this part theta1=((3/8)*pi)+((1/8)*pi*cos(((pi/.3)*s)+(pi/16))); theta1s=laplace(theta1);

ungefär en månad ago | 1

Load more