guoping qiu

Last seen: 7 months ago | Active since 2017

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Find the maximum number of decimal places in a set of numbers
Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not coun...

8 months ago

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There are 10 types of people in the world
Those who know binary, and those who don't. The number 2015 is a palindrome in binary (11111011111 to be exact) Given a year...

10 months ago

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Find out sum and carry of Binary adder
Find out sum and carry of a binary adder if previous carry is given with two bits (x and y) for addition. Examples Previo...

10 months ago

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Sums of cubes and squares of sums
Given the positive integers 1:n, can you: 1. Compute twice the sum of the cubes of those numbers. 2. Subtract the square...

10 months ago

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FizzBuzz
<http://c2.com/cgi/wiki?FizzBuzzTest FizzBuzz Test> The "Fizz-Buzz test" is an interview question designed to help filter out...

11 months ago

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Largest Geometric Series
Extension of Ned Gulley's wonderful <http://www.mathworks.com/matlabcentral/cody/problems/317 Problem 317>. In a geometric se...

11 months ago

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The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

11 months ago

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Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

1 year ago

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Getting the row and column location from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get <http://www.mathwo...

1 year ago

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Find last zero for each column
Given a numeric array of arbitrary size, return the row index of the last zero for each column. If a column contains all nonzero...

1 year ago

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Find the logic
There exists one logic in between input and output. Find it (easy math). Example 1: x=13 then y=339; Example 2: x=26...

1 year ago

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What number has this problem?
This problem is added because it is problem number *???* in the "Community" problems section. <http://www.mathworks.de/matlab...

1 year ago

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Area of rhombus
Calculate the rhombus area

1 year ago

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Geometric series
Find the sum, given the first term t1, the common ratio r, and number of terms n. Examples If input t1=1, r=1, n=7 the...

1 year ago

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The Tower of Hanoi
In the <http://en.wikipedia.org/wiki/Tower_of_Hanoi Tower of Hanoi problem> with 3 rods (1, 2 & 3), the goal is to move a tower ...

1 year ago

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Sum the 'edge' values of a matrix
Sum the 'edge' values of an input matrix (the values along the perimeter). Example [1 2 3 4 5 6 7 8 9] Output = ...

1 year ago

Solved

Find out value of sine given by degree.
Find out value of sine given by degree. If theta=30, it's value must be 0.5.

1 year ago

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Sum the Digits of a Number
Given an integer, sum the digits repeatedly until you end up with a single value less than 10. For example, if you add the di...

1 year ago

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BASICS - sum part of vector
Please make a function, where as input you get vector "x" and and vector "c", where in "c" vector you get indexes to sum. Examp...

1 year ago

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ベクトルのスケーリング
入力したベクトルの大きさを１にしてください。

1 year ago

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Count ones
Write a program to count number of ones (1s) in an integer variable input. For example: Input x=2200112231 output y=3 I...

1 year ago

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Get the elements of diagonal and antidiagonal for any m-by-n matrix
In the problem <http://www.mathworks.com/matlabcentral/cody/problems/858-permute-diagonal-and-antidiagonal Problem 858. Permute ...

1 year ago

Solved

Multiply 2 numbers
Very easy, you just have to multiply 2 numbers but you cannot use the following signs (*, /, - ,^) ,mtimes , times, cross, pro...

1 year ago

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find radius of cone
if Slant height of Cone(I)& hight of Cone(H) given then find radius of the Cone(R) for example I=5,h=4 then the ans R=3;

1 year ago

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Perfect Square or not
find Given input x is perfect square or not,if yes then output y=1.else y=0

1 year ago

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Transpose of matrix
Transpose of matrix as per test cases

1 year ago

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Find nearest prime number less than input number
Find nearest prime number less than input number. For example: if the input number is 125, then the nearest prime number whi...

1 year ago

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Draw 'C'.
Given x as input, generate a x-by-x matrix 'C' using 0 and 1. example: x=4 ans= [0 1 1 1 1 0 0 0 ...

1 year ago

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Building matrices
If you have matrix A, create matrix B using matrix A as an "element" A = [1 2 3 4; 5 6 7 8...

1 year ago

Solved

Finding perimeter of a rectangle
A rectangle has a length of x centimeters and a width of w centimeters. Find the perimeter.

1 year ago

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