Gifari Zulkarnaen
Korea University
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10 of your answers have been accepted
Awarded to Gifari Zulkarnaen on 15 Feb 2022
Contribute at least one answer each month for 3 consecutive months
Awarded to Gifari Zulkarnaen on 04 Mar 2020
Solve all the problems in Cody5:Easy
Awarded to Gifari Zulkarnaen on 16 Jan 2021
Create a problem
Awarded to Gifari Zulkarnaen on 07 Jan 2021
Your submissions received 1 five star rating
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Your submissions were downloaded 30 or more times in a month
Awarded to Gifari Zulkarnaen on 01 Jun 2020
Solve all the problems in CUP Challenge
Awarded to Gifari Zulkarnaen on 18 Jul 2020
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Awarded to Gifari Zulkarnaen on 14 Jul 2020
Comment on a problem or solution
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Solve all the problems in Introduction to MATLAB problem group
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Answer 1 question that was unanswered for more than 30 days
Awarded to Gifari Zulkarnaen on 26 Feb 2020
Feeds
Resuelto
Approximation of Pi (vector inputs)
Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given numbe...
más de 3 años hace
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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 numbe...
más de 3 años hace
Resuelto
Mersenne Primes vs. All Primes
A Mersenne prime (M) is a prime number of the form M = 2^p - 1, where p is another prime number. <https://www.mathworks.com/matl...
más de 3 años hace
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Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...
más de 3 años hace
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MATLAB Counter
Write a function f = counter(x0,b) to construct a counter handle f that counts with an initial value x0 and a step size b. E...
más de 3 años hace
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5 Prime Numbers
Your function will be given lower and upper integer bounds. Your task is to return a vector containing the first five prime numb...
más de 3 años hace
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Recaman Sequence - II
Take an arbitrary starting point as input and create Recaman Sequence. Then find the 1, return its index. For example: if n =...
más de 3 años hace
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Recaman Sequence - I
Recaman Sequence (A005132 - <http://oeis.org/A005132 - OEIS Link>) is defined as follow; seq(0) = 0; for n > 0, seq(n) ...
más de 3 años hace
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Sums of Multiple Pairs of Triangular Numbers
This is a follow-up to <https://www.mathworks.com/matlabcentral/cody/problems/44289 Problem 44289> - Find two triangular numbers...
más de 3 años hace
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Find two triangular numbers whose sum is input.
Find two triangular numbers whose sum is _input_. Note: The difference beetween the triangular numbers should be minimum.
más de 3 años hace
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Van Eck's Sequence's nth member
Return the Van Eck's Sequence's nth member. For detailed info : <http://oeis.org/A181391 OEIS link> and <https://www.theguard...
más de 3 años hace
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Write c^3 as sum of two squares a^2+b^2
write c^3 as sum of two squares a^2+b^2. a and b must be integer and greater than zero. For example 5^3 = 2^2 + 11^2 5...
más de 3 años hace
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Predicting life and death of a memory-less light bulb
*💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 💡 &...
más de 3 años hace
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A Simple Tide Gauge with MATLAB
*∿ ∿ ∿ ∿ ∿ ∿ ∿ ∿* You are standing in a few inches of sea water on a beach. You a...
más de 3 años hace
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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...
más de 3 años hace
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The glass half full
Identical glasses are placed in a triangular tower structure, such that the top level (L = 1) comprises one glass, the next leve...
más de 3 años hace
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Is it really a 5?
A number containing at least one five will be passed to your function, which must return true or false depending upon whether th...
más de 3 años hace
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Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...
más de 3 años hace
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Basic electricity in a dry situation
⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ &#...
más de 3 años hace
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Spot the First Occurrence of 5
This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...
más de 3 años hace
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Find the nearest prime number
Happy 5th birthday, Cody! Since 5 is a prime number, let's have some fun looking for other prime numbers. Given a positive in...
más de 3 años hace
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Can we make a triangle?
Given three positive number, check whether a triangle can be made with these sides length or not. remember that in a triangle su...
casi 4 años hace
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Find the sides of an isosceles triangle when given its area and height from its base to apex
Find the sides of an isosceles triangle when given its area and the height from its base to apex. For example, with A=12 and ...
casi 4 años hace
Resuelto
Height of a right-angled triangle
Given numbers a, b and c, find the height of the right angled triangle with sides a and b and hypotenuse c, for the base c. If a...
casi 4 años hace
Resuelto
Is the Point in a Triangle?
Check whether a point or multiple points is/are in a triangle with three corners Points = [x, y]; Triangle = [x1, y1; x...
casi 4 años hace
Resuelto
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
If _p_ is the perimeter of a right angle triangle with integral length sides, { _a_, _b_, _c_ }, there are exactly three solutio...
casi 4 años hace
Resuelto
Calculate the centroid of a triangle
Info: https://en.wikipedia.org/wiki/Centroid Example Input: x = [0 0 1]; % x-coordinate y = [0 1 0]; % y-coordinat...
casi 4 años hace
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