Solved

Matlab Basics - Sum a vector
Write a script to add up all the elements in a vector e.g. x = [1 2 3 4] --> output = 10

10 years ago

Solved

length of a vector
Find twice the length of a given vector.

10 years ago

Solved

Vectors counting by 2
Create a vector numbers from 7 to 15 in increments of 2

10 years ago

Solved

Remainder
Make 'y' equal to the remainder of 27 divided by 5. When x=27 and t=5

10 years ago

Solved

Rounding
Round 10.67 and make 'y' equal to that number.

10 years ago

Solved

UICBioE240 problem 1.9
Swap the first and last columns of a matrix. So if A = [12 4 7; 5 1 4]; B = [7 4 12; 4 1 5]; ...

10 years ago

Solved

Rotate a matrix for 180 degree
Rotate a matrix for 180 degree for eg: x=[1 2 3 4] y=[4 3 2 1]

10 years ago

Solved

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 ...

10 years ago

Solved

Second smallest number
What is the second smallest number in x? example: x = [1 2 3 4 5 6 7 8 9] y = 2

10 years ago

Solved

Number of nonzero elements in matrix
Calculate the number of nonzero elements for given matrix

10 years ago

Solved

First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero ...

10 years ago

Solved

Specific Element Count
Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

10 years ago

Solved

Back to basics 7 - Equal NaNs
Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

10 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

10 years ago

Solved

Solve t^(a*x^2+b*x+c)=s
Solve t^(a*x^2+b*x+c)=s. Return x vector as result. Example a=1, b=2, c=1, t=3, s=15. Result x(1)= 0.5700 x(2)=-2.5700 H...

10 years ago

Solved

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

10 years ago

Solved

Return unique values without sorting
If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The *values of B are in the s...

10 years ago

Solved

Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

10 years ago

Solved

Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

10 years ago

Solved

Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...

10 years ago

Solved

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...

10 years ago

Solved

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

10 years ago

Solved

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...

10 years ago

Solved

Concatenating arrays
* Assign studentIDs with concatenated row arrays groupA and groupB

10 years ago

Solved

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 ...

10 years ago

Solved

Double colon operator: Increment by x
* Construct a row array countValues from 0 to 25, elements incremented by incrementValue. Ex: If incrementValue is 5, countVa...

10 years ago

Solved

Volume of this donut
Given hole diameter a, and outermost diameter b, determine the volume y of the resulting donut.

10 years ago

Solved

Is it a number?
Determine if input is numeric. If it is,output is 1; if it is not, output is 0.

10 years ago

Solved

Add two numbers
Add two numbers (For beginners)

10 years ago

Solved

given 3 sides, find area of this triangle
1:3 -> 0; 3:5 -> 6

10 years ago