Andrew Newell

Last seen: nästan 2 år ago Active since 2011

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A geophysicist who uses MATLAB for most of his modeling. Professional Interests: geophysics

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The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

nästan 3 år ago

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List the emirps

mer än 3 år ago

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Lambert's W
Matlab cody does not support lambertw. Try to create a lambert's w function yourself. Lambert's W is the function that solves...

mer än 3 år ago

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First use of arrayfun() and anonymous function @(x)
Create an anonymous function using @(x) for a parabola equation for the given coefficients stored in s with s(1)x2 + s(2)x +...

mer än 3 år ago

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The End of the World
given a date -- represent it in the Maya long count system. <https://en.wikipedia.org/wiki/Maya_calendar> <https://maya.nm...

mer än 3 år ago

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Lost days
Given two dates in a particular format, calculate the difference between them.

mer än 3 år ago

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Leap Year
According to Gregorian Calender(which is in use now, in many countries),decide whether a given year is a leap year or not. Give...

mer än 3 år ago

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leap year
find the number of leap years within the given time interval

mer än 3 år ago

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Friday or not
I love Friday. Please tell me whether the day is Friday. Dateformat is 'yyyy-mm-dd' or 'dd-mmm-yyyy' or 'mm/dd/yyyy'. Exa...

mer än 3 år ago

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Datetime basics
Generate the datetime scalar representing the current date

mer än 3 år ago

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Find the day for a date
Today's day and date will be given to you. By utilising that you need to find the day of the old date. (Date will be in DD/MM/YY...

mer än 3 år ago

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Friday the 13th
According to superstition, lots of unpleasant stuff happens on Friday the 13th, so you might like to find the next occurence of ...

mer än 3 år ago

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Day counter function
Write a function called _day_counter_ that returns the number of Mondays that fell on the first day of the month in a given year...

mer än 3 år ago

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Count the days
Count the occurrence of a particular day (e.g. Monday) in a given year.

mer än 3 år ago

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How long until the weekend?
Write a function a that takes a date vector as an input and returns the number of hours until the weekend begins. The beginning...

mer än 3 år ago

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Days until next NewYear ball drop
Given a date string in the form 'yyyy-mm-dd' or 'yyyy-mm-dd hh:mm:ss', calculate the number of *days* until the dropping of the ...

mer än 3 år ago

How do I generate a random number with beta distribution?
You can use the function betarnd, but you'll need to do some normalizing to get it in the standard form used by MATLAB (see Beta...

mer än 3 år ago | 0

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Newton Raphson - saving all values and using last iteration value as initial for next
Sorry, I just realized that you wanted to save the iterations. Here's how: x = -0.001*ones(6,length(A1)); for i=1:5 x(i+1...

mer än 3 år ago | 0

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Newton Raphson - saving all values and using last iteration value as initial for next
O.k. So here is how you do it: x = -0.001*ones(size(A1)); for i=1:5 x = x - f(x)./fd(x); end

mer än 3 år ago | 0

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Combinations without using nchoosek
You have to generate a matrix with all possible combinations of n elements *taken 2* at a time, *without using nchoosek(1:n,2)* ...

mer än 3 år ago

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Find the Pattern 3

mer än 3 år ago

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Find the Pattern 2

mer än 3 år ago

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Find the Pattern 1

mer än 3 år ago

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Rotate Matrix @180 degree
Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

mer än 3 år ago

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Converts numbers into characters
Converts numbers into characters

mer än 3 år ago

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Find the max element of the array
Find the max element of the array

mer än 3 år ago

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Calculate the average value of the elements in the array
Calculate the average value of the elements in the array

mer än 3 år ago

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to the 2 all elements
to the 2 all elements

mer än 3 år ago

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the average value of the elements
Calculate the average value of the elements in the array

mer än 3 år ago

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Double all elements in the array
Duplicate all elements in the array

mer än 3 år ago