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**Content Feed**

Solved

Better Index Number

Let's say you want to save many, many files and append these files with a certain sortable index number. As you probably know, y...

3 months ago

Solved

modular arithmetic

Given three integers a,b and c, find the remainder when a^b is divided by c. Here, a^b will be well beyond the largest 64 bit in...

3 months ago

Solved

Concatenated roots

Which is the value of this infinte concatenated roots? <<https://s27.postimg.org/i4hkin7xf/Code_Cogs_Eqn.gif>> Note: If ...

3 months ago

Solved

calculate PI without using pi function

There are many methods to get the pi(Ratio of circumference to diameter). You should get pi without using the pi function in M...

3 months ago

Solved

Shuffle

Shuffle a vector by breaking it up to segments of |n| elements, and rearranging them in a reversed order. For example, the ve...

3 months ago

Solved

Temperature Conversion Utility

There are a few problems on Cody regarding temperature conversion (C to K, C to F, F to C), but none include Rankine. Furthermor...

3 months ago

Solved

Temperature Conversion Utility (Strings)

This is a follow-on problem to <http://www.mathworks.com/matlabcentral/cody/problems/2413-temperature-conversion-utility Problem...

3 months ago

Solved

Perl 1: push

_This is part of a series of perl function which were very helpful for many perl programmers. Could you implement it in Matlab?_...

3 months ago

Solved

Please check the last row

We have data of matrix, that is input. That contains 2 or more rows and the last row should contain the average of each column,...

3 months ago

Solved

Converting Decimal to Binary

Given a decimal number that may include a fractional component, convert it into binary representation. The numbers you are given...

3 months ago

Solved

Church Encoding

Church encoded numeral is a function which takes two arguments _f_ and _x_ and applies _f_ to _x_ several times. For example,...

3 months ago

Solved

Calculate cosine without cos(x)

Solve cos(x). The use of the function cos() and sin() is not allowed.

3 months ago

Solved

Determinant without using det()

Given a square matrix A, compute the <http://en.wikipedia.org/wiki/Determinant determinant> of A. Note that you may not use t...

3 months ago

Solved

Calculate the sum of two polynomials

Calculate the sum of two polynomials if they are written in notation with their coefficients. example: a=[3 4 5]; b=[...

3 months ago

Solved

Negative without '-'

Simple: return a negative number without using the '-' sign. Thanks to Problem <https://www.mathworks.com/matlabcentral/cody/...

3 months ago

Solved

Calculate sin(x) without sin(x)

Calculate y = sin(x) x = 0 -> y= 0 without the use of sin(x) or cos(x)

3 months ago

Solved

Airline Ticket Mod7 Checksum

There are 13 digits in an airline ticket number. If an airline ticket number is valid, the 13th digit should be the remainder of...

3 months ago

Solved

Multiplication

Multiply two numbers in a different manner. The numbers are given to you as vectors x and y. Example x = [ 1 2 0 1 ] ...

3 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...

3 months ago

Solved

Create a dictionary

The goal is to write a function that returns a dictionary from a list of words or phrases and their definitions. Here is an exam...

3 months ago

Solved

Tax Season ! How much is my salary?

Tax Season! I was employed for a period from x until y in a year and I get pay check of amount z on every alternate Friday of th...

3 months ago

Solved

Create a Cell array of month-end date strings within a date range

This is a variation of <http://www.mathworks.com/matlabcentral/cody/problems/1039-get-an-array-of-month-ends-in-a-date-range Get...

3 months ago

Solved

Is this date a palindrome?emordnilap a etad siht sI

Take a MATLAB date number as input, and return true if the date is a palindrome, false if the date is not a palindrome. A date ...

3 months ago

Solved

Calculate days until Christmas

Provided with inputs year, month, day e.g. 2019,11,12, calculate the number of days until the next Christmas day, i.e. the next ...

3 months ago

Solved

birthday on same day of week

Say, Mr. X's birthday is on 20th July, 2014. It was Sunday. Determine the closest year when his birthday will again be on Sunday...

3 months ago

Solved

How Many Months Until It's Today Again?

Given a particular date, calculate how many months must pass before that same day of the month occurs on the same day of the wee...

3 months ago

Solved

weekday and month

Given a year and a weekday, determine how many months of that year had five of those weekdays. It is kind of easy to find. Exam...

3 months ago

Solved

What day is it?

Tell me what day is it. Return the full name of the day of the week as a string. e.g. It's June 12th 2014, so your function s...

3 months ago

Solved

microseconds passed today

Calculate the amount of microseconds passed for a given date string. Return the value, rounded to the nearest integer, as a stri...

3 months ago

Solved

Find my birthday

Given a birth date x, find my age when my birth day will fall on the same day as I was born. So if I was born on Monday, what ag...

3 months ago