Replace multiples of 5 with NaN
It is required to replace all values in a vector that are multiples of 5 with NaN.
Example:
input: x = [1 2 5 12 10 7]
...
Doubling elements in a vector (★★)
(copy of prob. 1024)
Given the vector A, return B in which all numbers in A are doubling. So for:
A = [ 1 5 8 ]
t...
Create logarithmically spaced values (★)
Given three numbers a,b,n with b>a, create a vector y with n logarithmic spaced values between 10^a and 10^b.
Thus, if a = -2, ...
5年以上 前
解決済み
Mo money, mo math #2! (★★★)
(adapted from Prob 9 Cody team)
You have a matrix for which each row is a person and the columns represent the number of quar...
Mo money, mo math 1! (★★★)
(adapted from Prob 9 Cody team)
You have a vector where the elements represent the number of $20 bills, $10 bills, $5 bills, ...
5年以上 前
解決済み
Element-wise vector product (★)
Given two vectors x and y, compute their element-wise product z.
Thus, if x = [1 3 5] and y = [0.5 -1 2], then
z = [1*0.5...
5年以上 前
解決済み
Median computation (★)
Given a vector of values, compute the median. The median is defined as the middle value in a set of *sorted* data. Thus, if
...
5年以上 前
解決済み
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...
5年以上 前
解決済み
Prime number check (★★)
One way to see if a number x is prime is to compute the remainders obtained when dividing x by all integers from 2 to √(x). If x...
5年以上 前
解決済み
Variance computation (★)
Given a vector x with several values, compute the variance, whose formula is given by:
<<https://i.imgur.com/Wg95KBE.gif>>
...
5年以上 前
解決済み
Magnitude of a vector (★★★)
Given a vector x with values [ x1, x2, x3, ..., xn ], compute the magnitude (or length) of the vector which is given by
<<htt...
5年以上 前
解決済み
Sum of elements of a vector (★★★)
Given any vector x = [x1, x2, x3, ... xn], compute the sum of its elements.
Thus, if x = [ 1 3 -2 5 ], then the sum of its el...
PEMDAS test (★★)
Create the function that will return the following expression for x and y.
<<https://i.ibb.co/RHWyzrv/Code-Cogs-Eqn-1.gif>>
...
5年以上 前
解決済み
Swap the first and last columns (★★)
(copy of Prob 19)
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becom...
5年以上 前
解決済み
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
<>
...
5年以上 前
解決済み
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...