Calculating Student Grades
The matrix grades contains raw grades for 7 students who took your course. Each row represents a different student. The first 7 ...
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Determine if x is a combination of m and n
Given positive integers x, m, and n, determine if x can be written as x = am + bn for any (non-negative) integers a and b. Your ...
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Dog Statistics
The vectors ht and wt contains the heights and weights of 20 golden retrievers. In some cases, it was not possible to make both ...
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Generate this matrix
Generate the following matrix.
n = 2;
out = [-4 -3 -2 -1 0
-3 -2 -1 0 1
-...
Calculate the mean of each half of a matrix
Given a matrix with an even number of columns, n, return a 1-by-2 row vector where the first element is the mean of all the elem...
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Find Closest Constant
Given a number x, return the value that is closest to x from this list of constants: 0, 1, , e, , (also known as ).
For exampl...
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Matrix Quadrants
Write a function that takes N as the input, and outputs a matrix whose upper-left (NxN) quadrant contains all ones, the lower-ri...
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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...
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Lost days
Given two dates in a particular format, calculate the difference between them.
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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...
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leap year
find the number of leap years within the given time interval
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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...
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Datetime basics
Generate the datetime scalar representing the current date
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Calendar Matrix
Return a calendar matrix for the given values of month and year. Assume that Sunday is the first day of the week. The resulting ...
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Elapsed Time
Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...
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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...
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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 ...
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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 b...
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Count the days
Count the occurrence of a particular day (e.g. Monday) for a given duration.
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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...
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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 ...
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RSA decryption
Decrypt a large integer string using RSA decryption given the public key (n) and private key (d). Convert the large integer decr...