Community Profile # shinya matsumoto

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Generate pi using logarithm
Generate pi using logarithm

circa 9 ore ago

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Product of Array
Given an array of numbers. Get the product of the array.

circa 9 ore ago

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Matlab Basics - Set unwanted parts of a vector to zero
Consider a vector x, of length >= 7, write a script to set elements 2, 5, and 6 to zero. Example x = [1 2 3 4 5 6 7] --> ...

circa 9 ore ago

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Create vector as shown in test cases
Create vector as shown in test cases

circa 9 ore ago

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Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.

circa 9 ore ago

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Compute LOG(1+X) in natural log
Compute LOG(1+X) in natural log

circa 9 ore ago

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Matlab Basics - Pick out parts of a vector
Consider x a vector of length >= 7 (there are at least 7 elements in the vector, write a script that extracts the 2nd element, a...

circa 9 ore ago

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Find Out sum of principal diagonal element of given matrix
Find out sum of principal diagonal element of given matrix If A=[1 0 0; 0 1 0;0 0 1], then answer must be 3.

circa 10 ore ago

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Calculate the Hamming distance between two strings
Inspired by a similar Cody problem found <http://www.mathworks.com/matlabcentral/cody/problems/93-calculate-the-levenshtein-dist...

circa 10 ore ago

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Matlab Basics - Logical Tests I
Write a script to test whether a year number is for a leap year or not. eg. x = 1884 output = 1 eg. x = 3 output = 0

circa 11 ore ago

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Convert degrees to radians
Given input in degrees, output to radians

circa 11 ore ago

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Remove the positive integers.
Given array x (of integers), remove all the positive numbers and display ouput as y. Example x=[1 -2 3 -4] , output is y=[-2 -...

circa 11 ore ago

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Getting the absolute index from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...

circa 11 ore ago

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Divide by 4
Given the variable x as your input, divide it by 4 and put the result in y.

circa 11 ore ago

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Linear system of equations
Solve the system of equations in three variables.

circa 11 ore ago

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Sum of the Multiplication of Vectors
Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

circa 11 ore ago

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Find out total non zero element of matrix
Find out Non zero element of matrix A=magic(5) 17 24 1 8 15 23 5 7 14 16 4 6...

circa 11 ore ago

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Derivative of polynomial
Compute the derivative of a given polynomial. The input is an <http://www.mathworks.com/help/matlab/math/representing-polynomial...

circa 11 ore ago

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Convert from Base 10 to base 5
Convert the input number from base 10 into base 5: for example: if a(in base 10)= 5 then a(in base 5)= 10

circa 12 ore ago

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Create sequnce 1 4 9 16 25.........
Create sequnce 1 4 9 16 25......... upto entered input value using matlab scripting commands. Let y be output and x be input

circa 12 ore 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.

circa 12 ore ago

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How many jokers?
* Given DNA codes of a group of suspects, * and a code for certain types of jokers, * Count how many jokers of that type. * ...

circa 12 ore ago

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Find the area of the four walls
If length, breadth and height of the walls are given, find the area of the four walls.

circa 12 ore ago

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

circa 12 ore ago

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Similar Triangles - find the height of the tree
Given the height, h1, of a power pole, shorter than a tree, a given distance, x2 away, please find h2, height of the tree. Pleas...

circa 12 ore ago

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Find the Nth Root of a Given Number
Find the Nth root of a given number x. Examples x = 4096 n = 4 y = 8 x = 625 n = 5 y = 3.6239

circa 13 ore ago

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No Twins?
Write a function that accepts as input a vector and returns the same vector, but retaining only the first occurrence of an eleme...

circa 13 ore ago

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Do Fast Fourier Transformation
Example Fast Fourier Transformation from vector [2,1]) ans = 3 1

circa 14 ore ago

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Generate a random matrix A of (1,-1)
Input n: is an positive integer which serves as the dimension of the matrix A; Output: A=(Aij),where each entry Aij is either...

circa 14 ore ago

Solved

Cumulative product of a vector
Cumulative product of a vector example x=[1 2 5 10], then answer must be [ 1 2 10 100] *If you like this prob...

circa 14 ore ago