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Chao Rong


Last seen: 24 giorni ago
87 total contributions since 2020

Chao Rong's Badges

  • CUP Challenge Master
  • Introduction to MATLAB Master
  • Community Group Solver
  • Solver

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Solved


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...

circa 2 mesi ago

Solved


Make roundn function
Make roundn function using round. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) ...

circa 2 mesi ago

Solved


Matlab Basics - Rounding II
Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

circa 2 mesi ago

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Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

circa 2 mesi ago

Solved


MATLAB Basic: rounding III
Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

circa 2 mesi ago

Solved


MATLAB Basic: rounding IV
Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

circa 2 mesi ago

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Matlab Basics - Rounding III
Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

circa 2 mesi ago

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MATLAB Basic: rounding II
Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

circa 2 mesi ago

Solved


Check that number is whole number
Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

circa 2 mesi ago

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MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

circa 2 mesi ago

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Find max
Find the maximum value of a given vector or matrix.

circa 2 mesi ago

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Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

circa 2 mesi ago

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Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

circa 2 mesi ago

Solved


Create a vector
Create a vector from 0 to n by intervals of 2.

circa 2 mesi ago

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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

circa 2 mesi ago

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

circa 2 mesi ago

Solved


Inner product of two vectors
Find the inner product of two vectors.

circa 2 mesi ago

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Get the length of a given vector
Given a vector x, the output y should equal the length of x.

circa 2 mesi ago

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

circa 2 mesi ago

Solved


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 = ...

circa 2 mesi ago

Solved


sum of first 'n' terms
Given n=10, find the sum of first 'n' terms Example: If n=10, then x=1,2,3,4,5,6,7,8,9,10. The sum of these n=10 terms is 55...

circa 2 mesi ago

Solved


Airline Ticket Mod7 Checksum
There are 13 digits in an airline ticket number. If an airline ticket number is valid, the 13th digit should be the remainder of...

circa 2 mesi ago

Solved


Approximation of Pi
Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given numbe...

circa 2 mesi ago

Solved


Sum of series VII
What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

circa 2 mesi ago

Solved


Sum of series VI
What is the sum of the following sequence: Σk⋅k! for k=1...n for different n?

circa 2 mesi ago

Solved


Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

circa 2 mesi ago

Solved


Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

circa 2 mesi ago

Solved


Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

circa 2 mesi ago

Solved


Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

circa 2 mesi ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

circa 2 mesi ago

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