Solved

Solve an ODE: separable equation
Solve the following ordinary differential equation: with the initial condition .The test suite will ask for the value of the ...

10 days ago

Solved

Solve an ODE: equidimensional equation

10 days ago

Solved

Compute the Euler totient function

10 days ago

Solved

Determine whether a square can be drawn on a grid of dots

10 days ago

Solved

Count the ways pairs of parentheses can be matched correctly

10 days ago

Solved

List ways to reach a target sum

10 days ago

Solved

Find the nth Fibbinary number

10 days ago

Solved

Determine the Zeckendorf expansion of a number

10 days ago

Solved

Award medals to winners

10 days ago

Solved

Solve a ballot counting problem

10 days ago

Solved

Compute the date of a special marriage milestone

10 days ago

Solved

Construct finite difference approximations of derivatives
In solving a differential equation with a finite-difference method, one computes derivatives with various combinations of the fu...

11 days ago

Solved

Solve a Weird Calculator puzzle
The September 2012 issue of GAMES Magazine had a Weird Calculator puzzle by Erich Friedman. In this puzzle, the calculator has o...

11 days ago

Solved

Count alternating permutations
In an alternating permutation of numbers 1 to n, the numbers are arranged so that they alternately increase and decrease. For ex...

11 days ago

Solved

Construct dimensionless parameters
*Summary* Write a function to construct dimensionless parameters from a list of variables, a matrix indicating their dimensi...

11 days ago

Solved

Find the zeros of the Bessel function of the first kind
<https://mathworld.wolfram.com/BesselFunctionoftheFirstKind.html Bessel functions> are important in many problems in mathematica...

11 days ago

Solved

Compute the Bernoulli numbers
The <https://en.wikipedia.org/wiki/Bernoulli_number Bernoulli numbers> appear in several applications in number theory, includin...

11 days ago

Solved

Solve Geozee
Geozee is a new daily puzzle game where you have to assign 9 countries to 9 categories. Categories are such things as "Human Dev...

11 days ago

Solved

Show me the shape of your array
Write a function that determines the shape of the input array x: Return 'square' if x has the same number of rows and colum...

11 days ago

Solved

Decode an Encrypted AES image using CTR (counter mode) with no padding
Given an encoded AES image using CTR mode with no padding, the Initialization Vector (IV) (32 byte in uint8), and the AESkey (25...

11 days ago

Solved

Decode Message using AES with Cipher Block Chaining (CBC) and PKCS#5 padding
Provided an encrypted message using AES CBC mode with PKCS#5 padding, an encrypted AES key in the form of an audio .wav file tha...

11 days ago

Solved

Bit Stream conversion to Audio Frequency Shift Key using Bell 202 (Modem)
Convert a character binary bit-stream transmitted at a certain baud-rate into an audio stream using Audio Frequency Shift Key (A...

12 days ago

Solved

Compute the Ramanujan tau function for large numbers
The Ramanujan tau function is defined by the relation where . The first few values of are 1, -24, 252, -1472, and 4830. Wr...

12 days ago

Solved

Integrate a Power-Tower of a Function
Write a function to compute this integral: Where the function, F(x), will be provided as an Anonymous function of x, and th...

12 days ago

Solved

Quasi-Carmichael Numbers
Determine if the provided inputs are Quasi-Carmichael numbers and output a logical matrix of the same size as the input.

12 days ago

Solved

Minimum, Maximum, and Number of Primitive Roots Modulo (m)
This is a continuation of problem 59212, find the number of primitive roots modulo (m) and output the minimum and maximum of tho...

12 days ago

Solved

Sum of Consecutive Positive Integers Equals Product of Limiting Values
Determine m and n for the following equation: For example: 3 + 4 + 5 + 6 = 6*3 is the first occurance that satisfies the equat...

12 days ago

Solved

Heronian Triangles with Consecutive Integral Sides and Integral Area
Hero's area formula for any triangle with sides a, b, c is: . Heronian triangles are triangles having integral sides and integr...

12 days ago

Solved

Quaternions to Rotation Matrices
Given a matrix of Quaternions (along the rows), output a 3D matrix of Rotation Matrices.

13 days ago

Solved

Rotation Matrix to Euler Angles
Given a rotation matrix, generate the Euler Angles as output [phi,theta,psi]. [phi is a rotation around X-axis, theta is rotatio...

13 days ago