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**Content Feed**

Solved

Secure password

You are joining the MATLAB Central platform to solve a question on Cody. The signup page requires you to input an id and a passw...

14 hours ago

Solved

Evaluate the Kelvin functions

The Kelvin functions ber, bei, ker, and kei are related to Bessel functions of order . When the order is not specified, the defa...

14 hours ago

Solved

Find the slope of a line that passes through two vectors

Given two vectors p1 and p2, return the slope of a line that passes through p1 and p2. Examples: Input [p1,p2] = deal([0,1],[...

14 hours ago

Solved

SatCom #9: Overall Link Performance

Satellite and Space Engineering - Problem #9 This is part of a series of problems looking at topics in satellite and space comm...

1 day ago

Solved

SatCom #8: Satellite Link Budget

Satellite and Space Engineering - Problem #8 This is part of a series of problems looking at topics in satellite and space comm...

1 day ago

Solved

Truncatable Prime

A truncatable prime is a leading digit is successively removed, then all resulting numbers are prime. Wiki When given a number...

1 day ago

Problem stataments in Matlab

Final answer, I have tested this code on my laptop cd=0; %counting $ userd=[]; for i=1:size(T,1) if isequal(char(T.Colu...

3 days ago | 0

| accepted

Solved

Factor Digits

Check if a given number in an array of numbers is - Equidigital Number - A number that has the same number of digits as the num...

3 days ago

Problem

Factor Digits

Check if a given number in an array of numbers is - Equidigital Number - A number that has the same number of digits as the num...

3 days ago | 1 | 4 solvers

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('...

7 days ago | 2

| accepted

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])

7 days 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...

7 days 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))

7 days 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...

7 days 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);...

8 days 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; ...

8 days 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>=...

8 days 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

9 days 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))

9 days 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...

9 days 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)]

9 days 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...

10 days 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]...

10 days 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...

10 days ago

Solved

Creation of 2D Sinc Surface

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

10 days 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...

10 days 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...

10 days 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...

12 days 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...

12 days ago