Siren frequency and Doppler effect.
The Doppler effect is described on OpenStax University Physics at https://openstax.org/books/university-physics-volume-1/pages/1...
4年弱 前
解決済み
Find the nth composite number.
Everyone heard about the nth prime number. Let's try to find out the nth composite. For example , 1 is the first composite, 10 i...
4年弱 前
解決済み
Cancel Middle
Write a function called cancel_middle that takes A, an n-by-m
matrix, as an input where both n and m are odd numbers an...
4年弱 前
解決済み
Double Fibonacci
double_fibonacci takes two integers, each greater than one, as input arguments (it does not have to check the format of the inpu...
Matrizes Multiplicaveis
Dadas duas matrizes M1 e M2, verifique se as matrizes podem ser multiplicadas uma pela outra
M1 = [1 2 3; 4 5 6]
M2 = [7; 8; 9...
4年弱 前
解決済み
Número Repetido
Dado um número inteiro N, verifique se o número é composto apenas do mesmo inteiro
VerificaRepetido(123) = false;
VerificaRepe...
Generate a matrix as follows
write a Function that gives like the following for a random n:
n=2
ans= [ 0 1
1 0]
n=6
ans=
[ 0 ...
4年弱 前
解決済み
Array ex-OR
There are in MATLAB logical functions such as
_<http://www.mathworks.co.uk/help/matlab/ref/and.html and>,_
_<http://www.math...
4年弱 前
解決済み
Count the peaceful queens
In a 5x5 chessboard with a queen of one color (white, say) on the perimeter, one can place 12 black queens on the board such tha...
4年弱 前
解決済み
Define an arithmetic sequence
Given three numbers n, a, and d, define an arithmetic sequence of n terms with a being the initial term of the sequence and d be...
Flag a convertible string
If a string is able to be entirely converted to an integer, return a "true" flag. Otherwise, return a false flag. For example:
...
4年弱 前
解決済み
A little bit of luck needed
This one may require a little bit of guess work, but it is possible.
Hints:
- The same solution might fail the tests once and ...
4年弱 前
解決済み
MinMax mapping
Given a matrix, map all the elements within a given interval.
For example,
a=[ 2 5 10]
mapped in the interval [1,2] ...
4年弱 前
解決済み
Lista Ordenada
Dado um vetor V, verifique se o vetor está ordenado, retorne true ou false.
Ordenado([1 2 3 4]) = true;
4年弱 前
解決済み
odd number odd sum
How many three digit numbers are there whose sum of the digits is odd?
4年弱 前
解決済み
Draw a X
Given an input , create a square matrix of zeros with an X of ones.
Ex.
n = 3
drawX(3)
[ 1 0 1
0 1 0
1 0 1 ]
...