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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...

2 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...

2 years ago

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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...

2 years ago

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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. Examp...

2 years ago

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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 ...

2 years ago

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

2 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]; ...

2 years ago

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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...

2 years ago

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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...

2 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.

2 years ago

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

2 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...

2 years ago

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

2 years ago

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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

2 years ago

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Create a vector
Create a vector from 0 to n by intervals of 2.

2 years ago

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Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

2 years ago

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Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

2 years ago

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Find max
Find the maximum value of a given vector or matrix.

2 years ago

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Get the length of a given vector
Given a vector x, the output y should equal the length of x.

2 years ago

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Inner product of two vectors
Find the inner product of two vectors.

2 years ago

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

2 years ago

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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...

2 years ago

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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 ...

2 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:...

2 years ago

Answered
Name-value pairs
isdouble is not a MATLAB function. Try this : isa(YourVar, 'double')

2 years ago | 2

Answered
How to avoid the rounding off of data ?
There is no problem here, the default display format is set to short. Try : format long l = 2.093750000000000e+09;; l/10^9 ...

2 years ago | 0

Answered
modify all numbers from same column in workspace
% Your vectecor v = [1 2 3 1 2]; % Simply add 1 to your vector v_plus_one = v + 1; v_plus_one = 2 3 4 ...

2 years ago | 0

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Answered
Warning: Matrix is singular to working precision.
The operator to inverse a matrix is inv. If you want to divide your matrices element wise, you have to add a "." in front of "...

2 years ago | 0

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Answered
How to convert MATLAB plots to xls (Excel) sheets ?
You can access data of a plot with the line handle. For instance : % Current figure handle (or use openfig if you saved the fig...

2 years ago | 0

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Answered
What does M([1:1 2:3], [1:0 2:3]) mean?
This select = M([1:1 2:3], [1:0 2:3]) is awfully written, it means select = M(1:3, [2 3]) select is the lines 1 to 3 ...

2 years ago | 0

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