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Sibi


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VIT

1,926 2020 年以降の合計貢献数

Research scholar at VIT

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Sibi's バッジ

  • MATLAB Central Treasure Hunt Finisher
  • Knowledgeable Level 2
  • First Answer
  • Speed Demon
  • Project Euler I
  • Creator
  • Draw Letters
  • Scholar
  • Computational Geometry I Master
  • Tiles Challenge Master
  • Sequences And Series I Master
  • Sequences And Series II Master
  • Leader
  • Cody Problems in Japanese Master
  • CUP Challenge Master

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Low level NaN
* I have a dataset. Columns represents different variables. * A variable may start with NaN or any double type number. * If i...

36分 前

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How many trades represent all the profit?
Given a list of results from trades made: [1 3 -4 2 -1 2 3] We can add them up to see this series of trades made a profit ...

40分 前

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Select every other element of a matrix
Write a function called outMat = odd_idx( myMat ) that takes a matrix, myMat, as input argument and returns a matrix th...

約1時間 前

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Replace values out of an interval with the lower or upper values
For a vector or matrix X and an interval [n1,n2], the function replace every element of x inferior to n1 by n1, and every elemen...

約1時間 前

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What's the missing interior angle?
I'm talking about polygons... The sum of the interior angles of a triangle is 180 degrees. The sum of the interior angles of a...

約1時間 前

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Calculate vowel / consonant ratio of a string
Given a string, calculate the ratio of vowels to consonants for example : x = 'This is a very good Day!' y = 7/11

約1時間 前

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Frequency Analysis of Text
Frequency analysis is a common task in cryptoanalysis. It is essentially counting the occurrences of alphabets (regardless of ca...

約1時間 前

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Pad zero between every adjacent values of the vector.
you are given a vector x. you have to make an output vector y with zeros padded between every adjacent values of x. e.g x: ...

約1時間 前

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Repeat the entries of the vector to their reference times in the vector.
e.g for input x: [ 7 3 9 5] output y: [ 7 3 3 9 9 9 5 5 5 5]

約1時間 前

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Matrix Manipulation
Given an m*n matrix, see if a matrix contains any 0s in any row. if it contains 0 anywhere in any particular row, delete that ro...

約1時間 前

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row-th maximum row elements
Input a is a square matrix of size n*n. Output vector v is of size 1*n. The ith element of output v is the ith largest element o...

約1時間 前

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Calculate the h-index
H-index is a powerful tool for quantifying the scientific contribution of a researcher. H-index is defined as follows (source - ...

約1時間 前

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Find the biggest digit in a matrix
Write a function to find the biggest digit in a matrix; input -> a matrix output -> a digit For example; [12; 47;...

約2時間 前

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Numeric array to cell array of strings (easy)
Given a numeric array (A) and a 1xk cell array of strings (C), return a cell array (B) that is the same size as A and in which e...

約2時間 前

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Check if integer
Given a vector of elements, determine if each element is an integer and return true or false accordingly.

約2時間 前

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Find the index of nth maximum of a row vector of real numbers
Given a vector of real numbers x, find the index idx of _n_ th maximum value. If nth maximum occurs more than once, return the i...

約2時間 前

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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 ...

約2時間 前

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How many rectangles in a grid ?
How many rectangles are there in an m × n grid ? For example, if m=1 & n=2, we have 3 rectangles.

約2時間 前

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Number Persistence
A number's persistence is the number of steps required to reduce it to a single digit by multiplying all its digits to obtain a ...

約2時間 前

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Find my secret number
I try to hide a secret number in the workspace amongst others variables. I am paranoid so I change his value and his name a...

約2時間 前

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Chess probability
The difference in the ratings between two players serves as a predictor of the outcome of a match (the <http://en.wikipedia.org/...

約3時間 前

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Chess ELO rating system
The Elo rating system is a method for calculating the relative chess skill levels of players in competitor-versus-competitor gam...

約3時間 前

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Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

約3時間 前

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Odd row
Create a row 'y' with odd numbers where the potential maximum number is given by 'x' and the space between them by 'm'. The firs...

1日 前

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Last Digit of fibonacci number

1日 前

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weekday and month
Given a year and a weekday, determine how many months of that year had five of those weekdays. It is kind of easy to find. Ex...

1日 前

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leap year
find the number of leap years within the given time interval

1日 前

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Cull vector elements that contain a specified digit
Given inputs of (1) a row vector and (2) a digit, identify the elements of that vector that contain the digit, remove them, and ...

1日 前

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Make a list string
Given a cell string, produce a string separating the items with spaces and commas and with an 'and' preceding the final item, an...

1日 前

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Fangs of a vampire number
A <http://en.wikipedia.org/wiki/Vampire_number vampire number> is a number v that is the product of two numbers x and y such tha...

1日 前

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