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Decimal Comparison
*Background* A utility of particular interest to Cody and other MATLAB ventures is comparing the equality of two numbers. In ...
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Calculate the peak value of square wave
Given the peak value of sine wave, calculate corresponding peak value of square wave, if both have same RMS voltage.
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Finding fourier transform of a given vector
Find the fourier transform of a given input vector for ex a=[1 2 3 4] then y=[ 10.0000 + 0.0000i -2.0000 +...
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Feeling lucky?
Guess which number Cody is thinking (1 to 10)? (This is a game of luck more than skill. Good luck!)
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Find x in provided equation!
x^2-2*x+1=0 This polynomial can be expressed by using each term's coefficients, such as [1 -2 1]. Using the polynomial ...
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Calculate numerical integration.
x=0:0.01:1 y=@(x)x.^2 Using given two inputs(x and y), conduct numerical integration in x. (hint: trapz)
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Calculate inverse matrix in m by n matrix
x=(1:10)' y=roundn(2*x+7*rand(size(x)),-1) a*x=y Estimate a using inverse matrix calculation. This is principle of li...
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Linear system solve
Solve a linear set of equations as described in the following link: http://www.people.virginia.edu/~teh1m/cody/linsolv1.pdf
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Delete the rows in the middle
We will delete the rows in the middle and keep the first and the last rows. For example if input is [1 2 1 7 1 8 ...
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Periodic Table II 101.
Given the symbol of an element, return its atomic number. This is the continuation of <http://www.mathworks.com/matlabcentral/co...
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Diagonal Pattern
For a positive integer |n|, return an |nXn| matrix |mat| such that the value of each element in row |i| and column |j| is given ...
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Given a matrix A (size m x n) create a matrix B which consists of matrix A sorted in descending order by columns and then by rows.
--------------- A= [ 2 6 -3 7 12 0 -12 5 1] --------------- B= [12 7 1 6 2 0 5 -3 ...
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Implement a counter
Write a function that returns a function that counts the number of times it is invoked. Example: >> h = counter; >> h() ...
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Shift elements of vector left
Shift elements of vector to the left. For ex. : Input_vec = [1 2 3 4 5] Output_vec = [2 3 4 5 1]
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Determine point is located in a circle or not
Using input [x] and [y], determine the points (x,y) is located inside of circle (x^2+y^2=1) if point is located in circle, outp...
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average for three points
how to calculate the average (for each three values of y) y=[2 3 5 3 4 2 3 4 5 3 2 7 8 6 5 5 4 3 3 3 2 ] you ...
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Distances in a circle
A circle (360°) is given and a row of 6 monotonic increasing numbers with the which difference from last to first value is les...
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Given a number find two variables
If the input is *x*, find *a* and *b* from the following equation: *x = a*2^b*. Hint: *b* is an integer while *x* and *a* ar...
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Combinations without using nchoosek
You have to generate a matrix with all possible combinations of n elements *taken 2* at a time, *without using nchoosek(1:n,2)* ...
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Double Deal
*Description* Given an input vector _v_, return the first element as the first output, the second element as the second outpu...
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Leap Year
According to Gregorian Calender(which is in use now, in many countries),decide whether a given year is a leap year or not. Give...
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제출됨
Newell-Lee Evaporator System for System Identification
Simulink implementation of an industrial case study with 3 inputs and 3 outputs
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More luck than brains
Give a random function that guess and return numbers from 1 to 6 exactly like the test suite .
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Get all corner elements from a matrix where dimension of matrix is always equal to or greater than 2.
if a given matrix a = [1 2 3;4 5 6]; so answer is going to be [1 3;4 6]
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Encode Me From The Past
Given this input x = 2, 5, 1, 2, 4, 1, 1, 3 output should be (Five 2's, Two 1's, One 4, Three 1's) [2 2 2 2 2 1 1 4 1...
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Create tangent function out of sine function only
Please don't use cosine and tangent functions
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Back to basics 24 - Symbolic variables
Covering some basic topics I haven't seen elsewhere on Cody. Given a string algebraic expression, return the symbolic variabl...
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Full combinations
Given n input vectors x1, x2, …, xn, generate a p*n matrix y whose rows contain all element-wise combinations of the vectors x1,...
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Create all combinations of vectors
This function exists in the Neural Network Toolbox but is not available in Cody. Can you write such a function? See <http://...
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Maximum sum from any 2 numbers with a variable number of inputs
Given a variable number of inputs, combine any 2 numbers from the inputs and output the maximum sum the combinations can generat...
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