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guoqing


Aktiv seit 2024

Followers: 0   Following: 1

I'm a postgraduate of Henan University of Science and Technology

Programming Languages:
Python
Spoken Languages:
Chinese
Pronouns:
He/him

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Gelöst


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

5 Monate vor

Gelöst


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

5 Monate vor

Gelöst


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

5 Monate vor

Gelöst


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the numbers. Otherwise return false. Example...

5 Monate vor

Gelöst


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

5 Monate vor

Gelöst


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

5 Monate vor

Gelöst


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

5 Monate vor

Gelöst


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displayed ...

5 Monate vor

Gelöst


Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5

5 Monate vor

Gelöst


Energy of a photon
&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883 Given the frequency F of a photon in giga hertz. Find energy E of this photon...

5 Monate vor

Gelöst


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

5 Monate vor

Gelöst


Double all elements in the array
Duplicate all elements in the array

5 Monate vor

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Find the max element of the array
Find the max element of the array

5 Monate vor

Gelöst


the average value of the elements
Calculate the average value of the elements in the array

5 Monate vor

Gelöst


Find the largest value in the 3D matrix
Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

5 Monate vor

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Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

5 Monate vor

Gelöst


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

5 Monate vor

Gelöst


Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

5 Monate vor

Gelöst


Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

5 Monate vor

Gelöst


calculate the length of matrix
input 1 array, calculate the length

5 Monate vor

Gelöst


Square root
Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

5 Monate vor

Gelöst


Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

5 Monate vor

Gelöst


Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

5 Monate vor

Gelöst


radius of a spherical planet
You just measured its surface area, that is the input.

5 Monate vor

Gelöst


The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

5 Monate vor

Gelöst


Simple equation: Annual salary
Given an hourly wage, compute an annual salary

5 Monate vor

Gelöst


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...

5 Monate vor

Gelöst


Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

5 Monate vor

Gelöst


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

5 Monate vor

Gelöst


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

5 Monate vor

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