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Element by element multiplication of two vectors
Given two input vectors, return the element-by-element product. Example A = [1 2 3] B = [7 3 1] The answer should be...

12 years ago

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Solving Quadratic Equations (Version 1)
Quadratic equations have the form: ax^2 + bx + c = 0. Example: x^2 + 3x + 2 = 0, where a = 1, b = 3, and c = 2. The equation has...

12 years ago

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Dudeney Numbers: Numbers which are the cube of their decimal sum
From Wikipedia: _A Dudeney number is a positive integer that is a perfect cube such that the sum of its decimal digits is equa...

12 years ago

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Mongean Shuffle : 2
Extension to problem 2479 ( <https://www.mathworks.com/matlabcentral/cody/problems/2479-mongean-shuffle> ) Determine the numb...

12 years ago

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Mongean Shuffle
A Mongean shuffle of an n card deck starts with putting the initial deck on the left hand side. * The top card of the deck is...

12 years ago

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Sum of the pixel values for the blue color
Calculate the sum of the pixel values for the blue color, with a picture as an input. *NOTE:* The picture will be provided as...

12 years ago

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Max Change in Consecutive Elements
If an array is given as input then find the index of consecutive elements that represent maximum change. Example: Input ...

12 years ago

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Change the first and last diagonal element of the identity matrix to zero
Starting with the identity matrix, change first and last diagonal element to zero. Example If n=5 A = 0 0 ...

12 years ago

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realsmall
Please return the smallest positive number. This is a little silly problem, but the solution has some funny properties...

12 years ago

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Case-insensitive Character Detection
Find the index of a particular character in a string ignoring case. Example Input: x = 'aAbhhfdf' n = 'a' ...

12 years ago

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find the relation...
if given input is 1, output is 4. if input is 55, output is 3136.

12 years ago

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Matrix Generation.
if input n =1, generate a matrix y = [1]

12 years ago

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grazing cows
Here is a fun problem I encountered in high school. Two cows are grazing in an enclosed square-shaped field of side length s ...

12 years ago

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Product of elements in row
Product of matrix such that a=[3 3 1] b=9

12 years ago

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Area of a circle
Find the value for area of the circle if diameter is given

12 years ago

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Find the area of a rectangle if length of the diagonal is given.
if length of a diagnonal in rectangle is 5. Its area is 12.

12 years ago

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Find 100 from a Matrix and Replace With 0 with less computation time
pls use this matrix x = [208 40 167 180 112 70 192 215 90 19 231 100 9 100 97 100 ...

12 years ago

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Find the relation
Take x as input and y as output. If x=1 y=3 If x=2 y=14 If x=3 y=39 If x=4 y=84 Based on this relation find giv...

12 years ago

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Integer Sequence - II : New Fibonacci
Crack the following Integer Sequence. (Hints : It has been obtained from original Fibonacci Sequence and all the terms are also ...

12 years ago

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Let's see how peculiar we can get
The task is to multiply two numbers. But do it in the most peculiar possible way.

12 years ago

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Square Diagonal
If n is the given number, then make a diagonal matrix of size 2*2 with the square of that number.

12 years ago

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Roots
Find out the roots of a given polynomial equation.Given are the coefficients of the equation.

12 years ago

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Mechanical Advantage of a Gear Train
Calculate the mechanical advantage of a gear train. The mechanical advantage of a gear couple is given by MA = T_o/T_i where ...

12 years ago

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Temperature Conversion Utility
There are a few problems on Cody regarding temperature conversion (C to K, C to F, F to C), but none include Rankine. Furthermor...

12 years ago

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Remove entire row and column in the matrix containing the input values
Remove the entire row and column from the matrix containing specific values. The specified value can be a scalar or a vector. Fo...

12 years ago

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Return the Nth Output from an Input Command
*Description* Given _F_, a cell array whose first element is a function handle and subsequent elements are arguments, return ...

12 years ago

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Unique values without using UNIQUE function
You must return unique values in a vector in *stable* mode without using the unique function. About stable order flag: ...

12 years ago

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Fibonacci-Sum of Squares
Given the Fibonacci sequence defined by the following recursive relation, * F_n = F_(n-1) + F_(n-2) * where F_0 = 0 and F_1 ...

12 years ago

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Justify the character string in center with proportional fonts
how to justify a string of character into center with proportional fonts? Example: x='justify string ' output is ' justif...

12 years ago

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Is My Wife Wrong?
Answer the question. (see also <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right Problem 149: Is my ...

12 years ago