Andrew

Last seen: 12 days ago | Active since 2025

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Sum of series IX
What is the sum of the following sequence: Σ 1/k! for k=1...n for different n?

14 days ago

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Sum of series VIII

14 days ago

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Sum of series
a(n) = n^2 - (n-1)^2 find the summation of the series upto n i.e. a(1)+a(2)+...+a(n)

14 days 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?

14 days ago

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Sum of series V
What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?

14 days ago

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

14 days 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?

14 days 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?

14 days 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?

14 days 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?

14 days 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.

18 days 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 ...

18 days ago

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

18 days 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 to use d...

18 days ago

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

18 days ago

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

18 days 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.

18 days ago

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

18 days ago

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

18 days ago

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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

18 days ago

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Volume Pillar
Calculate the volume of a pillar with radius l and heigth ar.

21 days ago

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

21 days ago

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Perimeter of a semicircle
Given the diameter d, find the perimeter of a semicircle

21 days ago

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Given a square and a circle, please decide whether the square covers more area.
You know the side of a square and the diameter of a circle, please decide whether the square covers more area.

21 days 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 number of...

21 days ago

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Pi Digit Probability
Assume that the next digit of pi constant is determined by the historical digit distribution. What is the probability of next di...

21 days ago

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

21 days ago

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Pi Estimate 1
Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

21 days ago

Solved

Calculate area of sector
A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

21 days ago

Solved

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. Example...

21 days ago