swap sign sum & multiply castles
It is an easy problem, if you know the answer.
Given a square matrix of NxN ordinary numbers.
Initially place N identical indi...
8ヶ月 前
解決済み
Remove a specific character with another
Remove any (-) dash sign with (_) underscore
Ex = 'The-Journey-of-thoudsands-miles-starts-with-a-single-step'
y = 'The_Jour...
8ヶ月 前
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Flip the bit
Given an input character string (e.g. '1001'), return a character string with the bits flipped ('0110').
8ヶ月 前
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Matlab Basics - Switching Assignments
Switch assignments for variables x and y, for example
start with x = 1 and y = 3
end with y = 1 and x = 3
Do NOT simply r...
8ヶ月 前
解決済み
Find Rows with Specift Properities
Delete rows with specific properites as following:
Find rows that have a negative value in any element of the row and delete it...
Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.
9ヶ月 前
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Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes.
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If you want to get a random permutation of integer...
9ヶ月 前
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Number of 1s in a binary string
Find the number of 1s in the given binary string.
Example. If the input string is '1100101', the output is 4. If the input stri...
9ヶ月 前
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Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...
9ヶ月 前
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Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes.
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You may already know how to find the logical indices o...
Check if number exists in vector
Return 1 if number a exists in vector b otherwise return 0.
a = 3;
b = [1,2,4];
Returns 0.
a = 3;
b = [1,2,3];
Returns 1.
Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...