Solved

Vector of digits (★★)
Given a positive integer x, construct a vector y with all the digits of x in the order of appearance in x. Thus, if x = 172...

3 years ago

Solved

Matrix multiplication
Multiply two incoming matrices via matrix multiplication

3 years ago

Solved

Sum of elements in a vector (★)
(copy of Prob. 3) Find the sum of all the numbers of the input vector x. Input x = [1 2 3 5] Output y is 11 <> ...

3 years ago

Solved

Vector raised to a power, element-wise (★)
Given a vector A and a number x, raise each element of the vector to the power of x. Thus, if A = [2 5 7 1] and x = 0.5, then ...

3 years ago

Solved

Create a vector with n repeated values of a number x (★★)
If x=3 and n=7 then the vector y would be y=[3 3 3 3 3 3 3]

3 years ago

Solved

Volume of Cylinder
Find the volume of a cylinder

3 years ago

Solved

Vector Element Multiplication
Take two incoming vectors, and output the element wise multiplication of the vectors.

3 years ago

Solved

Factorize uniquely! (★★)

3 years ago

Solved

Hard limit function
Classify x data as if x>=0 then y=1 if x<0 then y=0 Example x = [ -2 -1 0 1 2] y = [ 0 0 1 1 1]

3 years ago

Solved

Replicate elements in vectors (★★★)
(copy of Prob 867) Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2...

3 years ago

Solved

Function 1 (★)
Compute the value of <<https://i.imgur.com/AxKWLmE.gif>> for any given positive x.

3 years ago

Solved

area of a sphere

3 years ago

Solved

find the roots of a quadratic equation
for e.g x = [ 2 -1 -3] y = [1.5 -1]

3 years ago

Solved

Back to basics 5 - Clipboard
Covering some basic topics I haven't seen elsewhere on Cody. Copy the input string to the clipboard

3 years ago

Solved

Calculate distance travelled when given radius and rotations
When given radius of wheel and number of rotations calculate total distance travelled consider pi=3.14

3 years ago

Solved

Back to basics 19 - character types
Covering some basic topics I haven't seen elsewhere on Cody. Return the number of punctuation characters in the input variabl...

3 years ago

Solved

Will there be a new leader?
Simply answer the title.

3 years ago

Solved

Flipping
Write code that can reverse the vector without using any sort of loop. Example Given the input vector A = [ 1 2 3 4 5...

3 years ago

Solved

Approximate the cosine function
Without using MATLAB trigonometric functions, calculate the cosine of an argument x to a precision of 0.0001 Hint: You may wish...

3 years ago

Solved

Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

3 years ago

Solved

Find the largest number
Find the largest number |x| among 4 numbers given as variables |a|, |b|, |c|, and |d|. Example: Input: a = 4; b = 7; c ...

3 years ago

Solved

Narcissistic number ?
Inspired by Problem 2056 created by Ted. In recreational number theory, a narcissistic number is a number that is the sum of ...

3 years ago

Solved

The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

3 years ago

Solved

How many Integers?
Count the integers in a given vector |v|. You *must* use a loop to count each element separately. Examples: Input: v...

3 years ago

Solved

Eye Squared
For a positive integer |n| create the identity matrix with |n| elements. In case it is not possible to produce an identity ma...

3 years ago

Solved

Sum of adjacent elements in a vector
Given a vector v, return a vector s containting the sum of every two adjacent elements in the vector. Every element s(i) cont...

3 years ago

Solved

Determine if input is a Narcissistic number
<http://en.wikipedia.org/wiki/Narcissistic_number Narcissistic number> is a number that is the sum of its own digits each raised...

3 years ago

Solved

Find out sum of prime number till given number
Find out sum of prime number till given number Example, if number is 10, then answer must be 17.

3 years ago

Solved

Tiling a matrix
Given a matrix and a number of columns, replicate matrix in a single row

3 years ago

Solved

Convert Fahrenheit to Celsius
Calculate the Celsius temperature C given the Fahrenheit temperature F. Examples: Input F = 90 Output C is 32.22 I...

3 years ago