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Solved
Sums of Multiple Pairs of Triangular Numbers
This is a follow-up to <https://www.mathworks.com/matlabcentral/cody/problems/44289 Problem 44289> - Find two triangular numbers...
23 hours ago
Solved
Recaman Sequence - I
Recaman Sequence (A005132 - <http://oeis.org/A005132 - OEIS Link>) is defined as follow; seq(0) = 0; for n > 0, seq(n) ...
23 hours ago
Solved
Recaman Sequence - II
Take an arbitrary starting point as input and create Recaman Sequence. Then find the 1, return its index. For example: if n =...
1 day ago
Solved
Spot the First Occurrence of 5
This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...
1 day ago
Comparing classification performance using Friedman Test
Hi @MByk, You're actually doing this correctly, and contrary to common belief, MATLAB's multcompare function does perform the...
1 day ago | 1
| accepted
When exporting a triangulation as an stl using stlwrite() the resulting stl is missing half of its faces.
Hi @Jacob, I can see from your attached image exactly what's happening. The yellow sections show valid triangulation on the g...
1 day ago | 0
real part of eigenvalues vs damping plot
Hi @Amira, I reviewed your code and did some research by going through mathworks documentations to find the root cause of you...
1 day ago | 0
Enter I-V curves data in Simscape IGBT block
Hi @Chwan-Hsen, I saw your question about entering the IGBT I-V curve data into Simscape and totally understand your frustrat...
3 days ago | 0
| accepted
Solved
Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...
5 days ago
How can I configure the IWR6843ISK radar to continuously chirp in order to capture phase-coherent data?
Hey Zahra, I've looked at both of your methods pretty carefully, and I think I can help clarify what's going on here. The sho...
5 days ago | 0
Solved
Half?
If you toss an even number (x) of coins, what is the probability (y) of 50% head and 50% tail?
5 days ago
Solved
Cos Function
x is the abscissa. find the absolute value of cosine of -x and the same value with changed sign.
5 days ago
Solved
What's Your BMI?
Find the body mass index. For reference, please refer to Wikipedia here: <http://en.wikipedia.org/wiki/Body_mass_index body ...
5 days ago
Solved
multiply by three
Given the variable x as your input, multiply it by 3 and put the result equal to y. Examples: Input x = 2 Output y is ...
5 days ago
Solved
Sum the numbers on the main diagonal
Sum the numbers on the main diagonal of an n-by-n matrix. For input: A = [1 2 4 3 6 2 2 4 7]...
5 days ago
Solved
Replacing a row
For matrix G=[1 2 3; 4 5 6; 7 8 9] Replace the 2nd row with 8s **remember to create matrix G
5 days ago
Solved
Find the Nth Root of a Given Number
Find the Nth root of a given number x. Examples x = 4096 n = 4 y = 8 x = 625 n = 5 y = 3.6239
5 days ago
Solved
Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product
5 days ago
Solved
Sum of logarithms
Given a vector, v, of real positive numbers, compute the sum, s, of the base-10 logarithms of the elements of v, without the use...
5 days ago
Solved
Find the largest value in the 3D matrix
Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...
5 days 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...
5 days ago
Solved
Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...
5 days ago
Solved
Back to basics 25 - Valid variable names
Covering some basic topics I haven't seen elsewhere on Cody. Given a string, return true if it is a valid MATLAB variable nam...
5 days ago
Solved
Back to basics 10 - Max Float
Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive floating-point number MATLAB can han...
5 days ago
Solved
Sum the 'edge' values of a matrix
Sum the 'edge' values of an input matrix (the values along the perimeter). Example [1 2 3 4 5 6 7 8 9] Output = ...
5 days ago
Solved
Count ones
Write a program to count number of ones (1s) in an integer variable input. For example: Input x=2200112231 output y=3 I...
6 days ago
