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Angle between two vectors
You have two vectors , determine the angle between these two vectors For example: u = [0 0 1]; v = [1 0 0]; The a...

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Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

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Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

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Return the Fibonacci Sequence
Write a code which returns the Fibonacci Sequence such that the largest value in the sequence is less than the input integer N. ...

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Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

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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...

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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...

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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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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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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

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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...

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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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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 ...

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

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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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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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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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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...

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Calculation velocity and acceleration from X and Y coordinates
It appears from the sample data that you show that the time interval is not constant in your data. This will cause some difficu...

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How to scale the x axis ?
First, you need to get the handle to the current axes: h=gca; This gives the handle to the current plot axes. Now you c...

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How to rotate ANY vector to a given angle in the space?
I am assuming that what you want to know are the rotation angles that would be used to perform a Z-Y rotation sequence in order ...

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I am trying to get the height of a flying object from the ground using single camera
There are two reasons why an object off-boresight looks smaller than an object that is in the center of the field of view. Ta...

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S-function Builder - Run Only Once
Here is a technique that I sometimes use. You can input an integer or Boolean parameter to the S-function. Use a "Memory" bloc...

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Time delay in matlab fuction block used in simulink model.
Place your Matlab function block into a triggered subsystem block (or an enabled subsystem block), then trigger/enable the bloc...

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how to implement Simplest down counter
Your logic seems to suggest that you want something more than just a decrement counter. A simple decrement counter would work e...

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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:...

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2D Interpolation of Scattered Data
I suggest you try "interp2" using the "cubic" method. (you may want to try the "spline" method also). These should be better t...

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Why is during intgration of velocity signal in simulink exhibits drift in position signal ?
If you have two different simulation of the same thing that show different results, it is clearly an indication of an implementa...

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