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Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

11 years ago

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Simulink - join two [512x1] matrices to obtain one [512x2] matrix?
In the _Math Operations_ library : *Matrix Concatenate*

11 years ago | 0

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Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

11 years ago

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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

11 years ago

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

11 years ago

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

11 years ago

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initialisation order of blocks in simulink
Hi, To know the sequence in which Simulink calculates. In the toolbar of your Model Display -> Blocks -> Sorted Executi...

11 years ago | 0

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

11 years ago

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

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Is my wife right?
Regardless of input, output the string 'yes'.

11 years ago

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

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Add two numbers
Given a and b, return the sum a+b in c.

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

11 years ago

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

11 years ago

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

11 years ago

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How to avoid programmatically the data overlapping from legend in plots
2 ways, If you want it inside : % user defined position (ex : right bottom) set(hleg1,'Position',[0.7443 0.1782 0....

11 years ago | 1

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Enumerated values in StateFlow chart
Hi, Did you check that the data is defined in the explorer and that your chart is configured in C language ? <</matlab...

11 years ago | 3

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Can anyone tell me where I went wrong below that I get Invalid file identifier error? This code attempts to write data in different output files, where file name includes a number and strings.
You wrote fprintf([file,'Competition Ladder for Round' char(ST+r)]) the *[ ]* are misplaced, it should be : fprintf...

11 years ago | 0

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How to avoid programmatically the data overlapping from legend in plots
Hi You could just put the legend outside the axe figure x = -pi:pi/20:1; bar(x,cos(x),'b') hold on bar(x,si...

11 years ago | 0

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Hello, I am new and trying to plot the imaginary parts of a function, can anyone help?
Hi, all the functions you need are <http://fr.mathworks.com/help/matlab/complex-numbers.html here>

11 years ago | 0

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undefined function 'displaytable' for input arguments of type double
displaytable is a function available on <http://fr.mathworks.com/matlabcentral/fileexchange/27920-displaytable this page>. D...

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How do I reverse the y-axis in image?
You can change the direction of increasing values along the y-axis by setting the YDir property of the Axes object. If you wan...

11 years ago | 11

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How do i find a row which follows conditions in colom a and b?
Hi, I guess your cell array (1000x2 cell) is _time_. Not knowing hat are all your data (A,time), I can just guess : ...

11 years ago | 0

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