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**Content Feed**

I try this coding but it's say plot error..what wrong with my coding?

Use fplot to plot symbolic expressions syms t f=exp(t)*sin(3*t); c=0.003; I=c*diff(f); figure; fplot(I); grid; xlabel('...

1 giorno ago | 2

cell merge and print

y=[45 45 65 65 28 28; 1 1 9 2 4 1; 9 4 7 2 3 1] z=mat2cell(y, [1 1 1], [2 2 2])

2 giorni ago | 0

Check for incorrect argument data type or missing argument in call to function 'isnan'.

The output of inputdlg is in form of cell array as you can see it your command window (below your editor) Use isaNumber = isna...

2 giorni ago | 1

hello! how can I create a matrix (size 10X10) with random numbers of 1 and -1?

y=[-1 1]; z=y(randi(2,10,10))

2 giorni ago | 1

Solved

Merge structs on fields

Merge a bunch of structs into one, containing the field names and corresponding values of all input structs. For duplicate field...

2 giorni ago

"Double for loop", question

Your data is being overwritten as the for loops runs. For the 1st for loop for i=1:n for j=1:n R(i)=a(j)*b(i);...

2 giorni ago | 1

replace matrix A with the values of another matrix B

A(:,:,1) = [0 0 1; 0 1 0; 0 1 1]; A(:,:,2) = [1 0 0; 0 0 0; 0 0 0]; A(:,:,3) = [0 1 0; 1 0 1; ...

2 giorni ago | 2

Mean and Median of Values in a matrix

I am giving you an example for one variable. meanvalue=[]; medianvalue=[]; for i=800:100:lastvalue y=flowrate(flowrate>=...

3 giorni ago | 0

How to generate a matrix with desired pattern using nested for loops?

n=5; A=zeros(n); for i = 1:n for j = min(i,n-i+1):max(i,n-i+1) A(i,j) = 1; end end A

3 giorni ago | 1

| accepted

I need to write a code to solve a system of equations with formatted output (fprintf).

A=[1, -3, 2; 2, -4, 3; 3, -5, -4]; B=[-11; -15; 5]; x=inv(A)*B; fprintf('x=%d, y=%d, z=%d.', x(1:3))

4 giorni ago | 1

Solved

Check Digit - 02

Given a list of ISBN's, check whether they're valid or not. Prev Prob - <https://www.mathworks.com/matlabcentral/cody/problem...

4 giorni ago

Find the gradient vector field of f . f (x,y,z)= x^2ye^y/z

syms f(x,y,z) f=x^2*y*exp(y/z) grad=[diff(f,x) diff(f,y) diff(f,z)]

4 giorni ago | 1

| accepted

Solved

What is the current time in Darwin, Australia?

Traders need to track exchange calendars and trading hours in detail, and account for time zone differences and daylight savings...

5 giorni ago

Solved

chess position

given the position of a chess piece in algebric notation, convert it into 8 by 8 matrix format. For example, * 'Qd5' >> [3,4]...

5 giorni ago

Solved

decipher the number 1 - same key for all digits :)

You will be given a input number (eg) x=12345 you have to figure out the dechiper key and match it with given input and deciph...

5 giorni ago

Solved

Creation of 2D Sinc Surface

This Challenge is to efficiently create the Sombrero function of various sizes, resolutions, and frequencies. <<https://sites...

5 giorni ago

Problem stataments in Matlab

I'm assuming that the data in Column 1 and Column 2 is char/strings. %T is your table cd=0; %counting $ userd=[]; for i=1:si...

5 giorni ago | 0

if function works in one table but not in another

Use isequal or strcmp if you are comparing the whole string. Use ismember or array indexes if you want to compare partial stri...

5 giorni ago | 2

Solved

Scrabble Scores - 10

This problem is very similar to the previous problem. Here, you are provided a letter of an existing word on the board from whic...

7 giorni ago

Solved

Scrabble Scores - 9

After developing a sophisticated Scrabble scoring routine, it's time to write an optimization routine for single-word scoring. T...

7 giorni ago

Solved

Propagate the effects of a blockage in a chemical plant

From the perspective of flow, a chemical plant can be described by a collection of _nodes_ and _edges_. _Nodes_ are points where...

8 giorni ago

How do I automate adding columns together

An example based on what you wrote y = randi(100,513,63); z=[]; for i=1:3:63 %groups of 3 as you mentioned z=[z sum(y(:,...

8 giorni ago | 1

| accepted

Solved

Exhaust all possible logical vectors

Input a length argument and list all possible logical vectors of that length. My solution is of size 29. Can you find an even s...

9 giorni ago

Solved

String Logic 11

Examples: 'SUNDAY' --> 6 'MONDAY' --> 6 'TUESDAY' --> 7 'WEDNESDAY' --> 9 'THURSDAY' --> 8 'FRIDAY' --> 5 'SATURDAY' --...

10 giorni ago

Solved

String Logic 10

Examples: 'SUNDAY' --> 83 'MONDAY' --> 77 'TUESDAY' --> 84 'WEDNESDAY' --> 87 'THURSDAY' --> 84 'FRIDAY' --> 70 'SATURD...

10 giorni ago

Solved

Stop a ZigZag scanning N*N Matrix at any diag you want

Suppose that we have a 2-D matrix and we try to obtain a 1-D array in zig-zag order, but not all values of our 2-D matrix e...

10 giorni ago

FFT WITHOUT Built-in functions

Using the definition given at the end of FFT document %x is your input x=[1 2 3 4]; fft(x) %using for comparison Method 1 %...

10 giorni ago | 1

Solved

String Logic 16

Examples: 'DIG' --> 'DIG' 'KIMBALL' --> 'ALLKIMB' 'DEAL' --> 'EALD' 'LIMB' --> 'IMBL' 'MADE' --> 'ADEM'

12 giorni ago

Solved

String Logic 14

Examples: 'DIG' --> 'HRN' 'KIMBALL' --> 'VRZDBXX' 'DEAL' --> 'HJBX' 'LIMB' --> 'XRZD' 'MADE' --> 'ZBHJ' 'CHEF' --> 'FPJL'

12 giorni ago