Answered

How to make a colorbar for a Fill3 plot resembling surf

So, I compared my plot (using fill3) to the similar plot with surf with the get() function and noticed that my cdata is empty an...

How to make a colorbar for a Fill3 plot resembling surf

So, I compared my plot (using fill3) to the similar plot with surf with the get() function and noticed that my cdata is empty an...

oltre 5 anni ago | 0

Question

How to make a colorbar for a Fill3 plot resembling surf

So previously I asked about making a surf style plot with the center of the square being the point of interest as oppose to usin...

oltre 5 anni ago | 1 answer | 0

Answered

Splitting up a matrix into X sizes/ based on specified values in a matrix

Logical indexing is one way. Both Doug and Loren have a mini tutorial on it. To get say all elements of X(1,:), that are say 0-5...

Splitting up a matrix into X sizes/ based on specified values in a matrix

Logical indexing is one way. Both Doug and Loren have a mini tutorial on it. To get say all elements of X(1,:), that are say 0-5...

circa 6 anni ago | 0

Question

Surface plots and mesh

% So here is the problem, Say I have the following arrays: x = [1, 2, 3]; y = [1, 2, 3]; A = [1, 1, 1; 1, 2, 1; 1, 1,...

oltre 6 anni ago | 1 answer | 0

Solved

Subset Sum

Given a vector v of integers and an integer n, return the the indices of v (as a row vector in ascending order) that sum to n. I...

circa 7 anni ago

Solved

QWERTY coordinates

Given a lowercase letter or a digit as input, return the row where that letter appears on a <http://en.wikipedia.org/wiki/Keyboa...

circa 7 anni ago

Solved

Make a Palindrome Number

Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

circa 7 anni ago

Solved

Reverse Run-Length Encoder

Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

circa 7 anni ago

Solved

Sort a list of complex numbers based on far they are from the origin.

Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

circa 7 anni ago

Solved

Back to basics 9 - Indexed References

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix and row and column, output the index of th...

circa 7 anni ago

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Bottles of beer

Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

circa 7 anni ago

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Balanced number

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

circa 7 anni ago

Solved

Distance walked 2D

Suppose you go from x-y coordinates [3,4] to [0,0] to [0,1] to [1,1], then you walked 7 units of distance.

circa 7 anni ago

Solved

Count from 0 to N^M in base N.

Return an array of numbers which (effectively) count from 0 to N^M-1 in base N. The result should be returned in a matrix, with ...

circa 7 anni ago

Solved

Make one big string out of two smaller strings

If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

circa 7 anni ago

Solved

Back to basics 8 - Matrix Diagonals

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

circa 7 anni ago

Solved

Is my wife right? Now with even more wrong husband

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

circa 7 anni ago

Solved

Distance walked 1D

Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

circa 7 anni ago

Solved

The Hitchhiker's Guide to MATLAB

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

circa 7 anni ago

Solved

Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

circa 7 anni 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

circa 7 anni ago

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Determine Whether an array is empty

Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

circa 7 anni ago

Solved

Back to basics 11 - Max Integer

Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive integer MATLAB can handle.

circa 7 anni ago

Solved

surface of a spherical planet

you just discovered its circumference, that is the input.

circa 7 anni ago

Solved

Making change

Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

circa 7 anni ago

Solved

Increment a number, given its digits

Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

circa 7 anni ago

Solved

Sum of diagonal of a square matrix

If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

circa 7 anni ago