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First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];
etwa 19 Stunden vor
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frame of the matrix
Given the matrix M, return M without the external frame.
etwa 19 Stunden vor
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Square a Number
Given an input x, return y, which is equal to the square of x.
etwa 19 Stunden vor
Gelöst
Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...
etwa 19 Stunden vor
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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...
etwa 19 Stunden vor
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Area of a triangle
A triangle is given with base *'b'* ,vertical hight *'h'* . then find it's area.
etwa 19 Stunden vor
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Divide by 4
Given the variable x as your input, divide it by four and put the result in y.
etwa 19 Stunden vor
Gelöst
Back to basics 6 - Column Vector
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...
etwa 19 Stunden vor
Gelöst
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
etwa 19 Stunden vor
Gelöst
Y=X
Given an input variable x, output a variable y that is equal in value to x. Example: Input x = 1 Output y is 1 Inp...
etwa 19 Stunden vor
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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 ...
etwa 19 Stunden vor
Gelöst
surface of a spherical planet
you just discovered its circumference, that is the input.
etwa 19 Stunden vor
Gelöst
Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...
etwa 20 Stunden vor
Gelöst
Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...
etwa 20 Stunden vor
Gelöst
Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5
etwa 20 Stunden vor
Gelöst
How to subtract?
*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...
etwa 20 Stunden vor
Gelöst
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
etwa 20 Stunden vor
Gelöst
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 ...
etwa 20 Stunden vor
Gelöst
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...
etwa 20 Stunden vor
Gelöst
Figurate number triangle
Check whether the input matrix is a figurate number triangle: <http://mathworld.wolfram.com/FigurateNumberTriangle.html>
etwa 20 Stunden vor
Gelöst
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...
etwa 20 Stunden vor
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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".
etwa 20 Stunden vor
Gelöst
Magic!
Check whether the input matrix is a normal magic square: http://en.wikipedia.org/wiki/Magic_square Output the logical value tr...
etwa 20 Stunden vor
Gelöst
Read a Soroban Abacus
*Description* The Soroban is the name of the modern Japanese abacus. Information on reading a Soroban can be found <http://we...
etwa 20 Stunden vor
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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.
etwa 20 Stunden vor
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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 ...
etwa 20 Stunden vor
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Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...
etwa 20 Stunden vor
Gelöst
Tune your guitar
Given an input string with the scientific pitch notation for standard tuning ( <http://en.wikipedia.org/wiki/Guitar_tunings#Stan...
etwa 20 Stunden vor
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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...
etwa 21 Stunden vor
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Cannon Ball
Given g (acceleration due to gravity) and desired altitude x, find the minimum ground velocity of a cannon ball to reach x.
etwa 21 Stunden vor
