Andrew Newell

Last seen: 約2年前 | 2011 年からアクティブ

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

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Using AND Operator in “if” statements
The problem is that size returns a vector: size([1 2 3]) ans = 1 3 Instead, use |numel|: if numel([1 2 3])==numel([4 5 6]) &...

3日前 | 9

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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...

約3年前

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List the emirps

3年以上前

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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...

3年以上前

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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 +...

3年以上前

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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...

3年以上前

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

3年以上前

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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...

3年以上前

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

3年以上前

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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...

3年以上前

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Datetime basics
Generate the datetime scalar representing the current date

3年以上前

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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...

3年以上前

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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 ...

3年以上前

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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...

3年以上前

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

3年以上前

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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...

3年以上前

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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 ...

3年以上前

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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...

3年以上前 | 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...

3年以上前 | 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

3年以上前 | 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)* ...

3年以上前

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Find the Pattern 3

3年以上前

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Find the Pattern 2

3年以上前

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Find the Pattern 1

3年以上前

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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;...

3年以上前

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Converts numbers into characters
Converts numbers into characters

3年以上前

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

3年以上前

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

3年以上前

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to the 2 all elements
to the 2 all elements

3年以上前

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

3年以上前

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Andrew Newell

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