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Ahmed Diaa


2016 이후 활성

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

약 3년 전

제출됨


oscillations in mechanical structures and electric circuit
oscillations in mechanical structures and electric circuit

약 3년 전 | 다운로드 수: 2 |

해결됨


Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

약 3년 전

제출됨


simple plotting example
simple example of plotting + peak analysis

약 3년 전 | 다운로드 수: 2 |

해결됨


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

약 3년 전

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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...

약 3년 전

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

약 3년 전

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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...

약 3년 전

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

약 3년 전

해결됨


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

약 3년 전

질문


Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return false otherwise.
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

약 3년 전 | 답변 수: 2 | 0

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해결됨


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

약 3년 전

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

약 3년 전

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

약 3년 전

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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...

약 3년 전

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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]; and ...

약 3년 전

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

약 3년 전

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Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

약 3년 전

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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 ...

약 3년 전

해결됨


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

약 3년 전

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Is my wife right?
Regardless of input, output the string 'yes'.

약 3년 전

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Add two numbers
Given a and b, return the sum a+b in c.

약 3년 전

답변 있음
How to Sum matrix diagonals
x=sum(diag(E));% calculating the normal diagonal y=sum(diag(flip(E)));% calculating the inverse diagonal z=[];% subtrac...

약 3년 전 | 0

해결됨


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

약 3년 전

해결됨


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

약 3년 전

해결됨


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

약 3년 전

질문


when i code using iteration an error occurs saying "the varable "Q2"appears to change size in every loop iteration(within a script).consider preallocating for speed" so how to deal with this issue. :)
r1=15.67; r2=63.64; r3=20.996; E1=30; E2=18; E3=9; n=1; Ej(n)=(E1+E2)/2; while Ej(n)<E1 && Ej(n)>E3 , n=1:.1:50; Q1(n)...

5년 이하 전 | 답변 수: 1 | 0

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