Paul Morant
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Solve a problem with a best solution
Awarded to Paul Morant on 03 Feb 2021
Solve all the problems in Tiles Challenge
Awarded to Paul Morant on 02 Feb 2021
Solve all the problems in Computation Geometry I
Awarded to Paul Morant on 29 Jan 2021
Solve all the problems in Computation Geometry II
Awarded to Paul Morant on 18 Jan 2021
Solve all the problems in Magic Numbers II
Awarded to Paul Morant on 20 Nov 2020
Solve all the problems in Magic Numbers
Awarded to Paul Morant on 06 Nov 2020
Solve all the problems in Sequences & Series I
Awarded to Paul Morant on 20 Oct 2020
Solve 500 problems
Awarded to Paul Morant on 07 May 2020
Create a problem
Awarded to Paul Morant on 14 Oct 2019
Solve all the problems in Cody Problems in Japanese problem group
Awarded to Paul Morant on 13 Sep 2019
Comment on a problem or solution
Awarded to Paul Morant on 23 Apr 2019
Be the first to solve a problem
Awarded to Paul Morant on 23 Apr 2019
Content Feed
Solved
How long do each of the stages of the rocket take to burn?
A space rocket has 3 stages: - stage 1, s1; - stage 2, s2; - stage 3, s3. If s1 burns 3 x as long as s2 which burns ...
6 months ago
Solved
What gear ratio does the cyclist need?
A cyclist (perhaps including our famed Codysolver the cyclist <http://www.mathworks.com/matlabcentral/cody/players/1841757-the...
6 months ago
Solved
SatCom #2: Gain of a circular 'dish' antenna
*Satellite and Space Engineering - Problem #2* _This is part of a series of problems looking at topics in satellite and space...
6 months ago
Solved
Calculate compression ratio of engine
Calculate compression ratio of engine given compression volume of cylinder(Vc), piston stroke(s) and valve diameter(d)
6 months ago
Solved
Calculate Engine Power
Calculate Engine Power (P) in kW given the values of Torque(M) in Nm and Engine Speed(n) in rpm
6 months ago
Solved
SatCom #4: Satellite Orbit Altitude
*Satellite and Space Engineering - Problem #4* _This is part of a series of problems looking at topics in satellite and space...
6 months ago
Solved
Compute the missing quantity among P, V, T for an ideal gas
Consider 100 mol of helium gas at a certain pressure (P), volume (V), and temperature (T). Assuming that the ideal gas law appli...
6 months ago
Solved
Electrical Diode Current Calculation
In engineering, there is not always a single equation that describes a phenomenon accurately enough to be applied in all instanc...
6 months ago
Solved
An Ohm's Law Calculator
*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...
6 months ago
Solved
Compute the perimeter of an ellipse
While the area of an ellipse is straightforward to compute, the perimeter (or circumference) is more complicated. The perimeter ...
6 months ago
Solved
Identify Wagstaff primes
The numbers 3, 43, and 2731 are examples of <https://mathworld.wolfram.com/WagstaffPrime.html Wagstaff primes>. Write a func...
6 months ago
Solved
Determine digits of the Copeland-Erdos constant
<https://www.mathworks.com/matlabcentral/cody/problems/1477-champernowne-constant/solutions/new Cody Problem 1477> asks us to de...
6 months ago
Solved
Find the last non-zero digit in a primorial
<https://www.mathworks.com/matlabcentral/cody/groups/2001/problems/45251 Cody Problem 45251> asked us to find the last non-zero ...
6 months ago
Solved
Identify primorial primes
Cody Problems <https://www.mathworks.com/matlabcentral/cody/problems/46054-count-trailing-zeros-in-a-primorial 46054> and <https...
6 months ago
Solved
Compute the harmonic numbers
The nth <https://mathworld.wolfram.com/HarmonicNumber.html harmonic number> is defined as the sum of the reciprocals of the inte...
6 months ago
Solved
Count trailing zeros in a primorial
<https://www.mathworks.com/matlabcentral/cody/problems/44068-the-number-of-trailing-zero-digit-of-a-factorial Cody Problem 44068...
6 months ago
Solved
Determine whether a number is a cluster prime
A <https://mathworld.wolfram.com/ClusterPrime.html cluster prime> is an odd prime number _p_ such that all even numbers less tha...
6 months ago
Solved
Investigate the frequency of last digits of prime numbers
The last digit of a prime number greater than 5 can be 1, 3, 7, or 9. If the primes are distributed randomly, then these digits ...
6 months ago
