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# Chao Rong

##### Last seen: 24 giorni ago
87 total contributions since 2020

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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...

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

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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

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MATLAB Basic: rounding III

circa 2 mesi ago

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MATLAB Basic: rounding IV

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

circa 2 mesi ago

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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

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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

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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

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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 = ...

circa 2 mesi ago

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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