ChrisR

Last seen: Today

1.451 total contributions since 2015

Faculty member in civil & environmental engineering

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Solved

Change the sign
Given a matrix x, return one with each diagonal element replaced by its absolute value and the largest element in absolute value...

26 minutos ago

Solved

A "Complex" Converter: Rectangular Form <-> Polar Form
*BACKGROUND / MOTIVATION:* Complex numbers can be an important tool in an electrical engineer's toolbox because they can help...

alrededor de 1 hora ago

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Tiling a matrix
Given a matrix and a number of columns, replicate matrix in a single row

alrededor de 2 horas ago

Problem

Solve the Challenger puzzle

alrededor de 2 horas ago | 0

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Evaluate the gamma function
The <https://mathworld.wolfram.com/GammaFunction.html gamma function> is a generalization of the factorial, and it appears in ma...

alrededor de 3 horas ago

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This is a palindrome and so am I
A palindrome is a sequence of characters which reads the same backward or forward, for instance 'a man a plan a canal panama'...

alrededor de 3 horas ago

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Matrix FUN
Given a Matrix M, find out the number of elements of matrix that are divisible by 3. M = [1 2 3;4 5 6;7 8 9]; ou...

alrededor de 13 horas ago

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Combined Ages 1 - Symmetric, n = 3
You have probably seen the common riddle wherein combined ages are provided and you must determine the individual ages. For exam...

alrededor de 23 horas ago

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Assignment Problem
Given a matrix where row i corresponds to person i, and column j corresponds to task j and cell (i,j) corresponds to the time ta...

alrededor de 24 horas ago

Problem

Test approximations of the prime counting function

1 día ago | 0

Solved

Create a random logical vector of N elements of which M are true.
Your task for tomorrow is to create a random binary (logical) vector of N elements of which M are true. For example: ran...

1 día ago

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Zero
given an integer a, find the smallest possible integer b(b>0) such that their bitwise logical AND is zero. * if a=11(1011) t...

1 día ago

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XOR fibonacci
a & b are the first two terms in the xor fibonacci sequence. Find the nth term of that sequence. XOR fib sequence is that in ...

1 día ago

Problem

Compute the date of a special marriage milestone

1 día ago | 1

Solved

Percentage
There is x liter water and y gram => z is percentage of salt in water

2 días ago

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Convert Angstrom to Meters
Write a code that converts the angstrom unit to meters.(A is angstrom and m is meters.)

2 días ago

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Electric Flux
Calculate the flux passing through a surface. E is electric field, A is area.

2 días ago

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How tall are you?
measures your height forexample= 175cm 180cm 169cm

2 días ago

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Step number
Step number

2 días ago

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Times 10
Try out this test problem first. Given the variable x as your input, multiply it by ten and put the result in y. Examples:...

2 días ago

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Angle of triangle
For three unknown points a b c, given three sides ab bc ca, find three angles abc bca cab in radians. Your function should b...

2 días ago

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Sort in descending order.

2 días ago

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Find sum of numbers on the cornice of a matrix.

2 días ago

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Determine the sum of diagonal elements in a matrix excluding negative and NaN values

2 días ago

Problem

Evaluate the prime zeta function

2 días ago | 0

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Number of toolboxes?
Return a number equal to the number of toolboxes available to the Cody solvers.

2 días ago

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The proportion of NaN in the data
If NaN occupies less than half of the input data, return 1, otherwise return 0. eg. input x = [1 2 NaN ; 4 NaN 6] >>> out...

3 días ago

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Change matrix to vector2
From x = 4 3 5 1 5 1 To y = 4 3 5 1 ...

4 días ago

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Funny problems
Generate the following vector： if n=1 then q=1; elseif n=2 then q=[2 2 1]; elseif n=3 then q=[3 3 3 2 2 1]; ... end

4 días ago

Solved

英語の文章内の母音を取り除くコードを書きましょう。
与えられた英語の文章内の母音を取り除きましょう。例: 入力 s1 が 'Jack and Jill went up the hill' の場合、出力 s2 は 'Jck nd Jll wnt p th hll' * (英語版) ...

4 días ago