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Compound interest - number e
A moneylender wants to receive his annual interest of 12% more frequently. If he receives his interest rate every six months,...

11 months ago

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Isothermal Expansion
Given the initial pressure and volume of an ideal gas, calculate the new volume, given the new pressure. Hint: <https://en.wi...

11 months ago

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Simple Interest : Calculate Future Value
Theorem : Simple Interest where; F : Future Value P : Present Value r : Annual simple interest rate (decimal) t : Time in...

11 months ago

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edge detection
write a function that gives the indexes of rising or falling edge x is a vector (assume it contains always at least one eleme...

11 months ago

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Angle between two vectors
Given 2 pairs of _cartesian co-ordinates_, determine the angle between the 2 vectors formed by the _points_ and the _origin_. An...

11 months ago

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determine amount cookies left
started with 3 cookies and you never ate any how many are left

11 months ago

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number of groups
In a classroom, *n* students work on a special project and the other students work in groups of five. If there are 18 students i...

11 months ago

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Distance Between Points
Being n the number of points (If n = 3 there would be 3 points: A, B and C). The distance between each pair of points increases...

11 months ago

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Number of o rderd pairs of integers (I,J) that can be formed.
Write a MATLAB function that calculates the number of ordered pairs of integers (I, J) that can be formed satisfying the condit...

11 months ago

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Ordered pairs of integers (I, J).
Write a MATLAB function that calculates the number of ordered pairs of integers (I, J) that can be formed satisfying the conditi...

11 months ago

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Calculate vowel / consonant ratio of a string
Given a string, calculate the ratio of vowels to consonants for example : x = 'This is a very good Day!' y = 7/11

11 months ago

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Find the binary code
Given a sinusoidal signal, create a function that returns the binary code of a quantized value. The function takes the bit lengt...

11 months ago

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short or buy ? take the opportunity
you had already calculated a theoretical stock value, now you checked in bloomberg the quoted price of that stock and you have t...

11 months ago

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Monkey and the Peaches
A monkey picked a certain number of peaches on the first day. Each day, the monkey eats half of the remaining peaches plus one ...

11 months ago

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How to get the additive inverse of a uint8.
Given x as a uint8 find the additive inverse y.

11 months ago

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List the near-square primes, p = n² + 1 (Landau's 4th problem)
Historical context At the 1912 International Congress of Mathematicians, Edmund Landau listed four basic problems about prime...

11 months ago

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Secret Message and Acrostic
One of the simplest ways to hide a message involves utilizing uppercase letters. Given a text, collect all uppercase letters in...

11 months ago

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Sum of Dividend Digits
Find the smallest number that consist of only number 1's (e.g. 11111111111) which satisfy a given divisor and remainder. Then re...

11 months ago

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Sum of digit range
Example: If A is n1, and B is n2 digit positive numbers. A*B's digit range will be [c d] (c = min & d = max). Then return ...

11 months ago

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Logarithm with base other than 'e'
The standard log() function in Matlab returns the natural logarithm (base equal to Euler's constant). Compute the logarithm for ...

11 months ago

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With apologies to William Blake
Coder Coder, typing fast Sitting at your desk, aghast. What immortal MATLAB script will solve this problem, nice and qu...

11 months ago

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Combination of Vectors
Return a combination of vectors x1, x2 based on y1, y2 per: x(j) = 0 if y1(j) < y2(j) x(j) = x1(j) if y1(j)...

11 months ago

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Put all numbers in a string inside square brackets
Examples: 'left3down2' -> 'left[3]down[2]' 'fiat500' -> 'fiat[500]'

11 months ago

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Explode string
Break a sentence into cell of words

11 months ago

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Sort vector by number of prime factors of each element
Sort a given array based on how many prime factors each term has. Sort from least to greatest and output original values. Ex: ...

11 months ago

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Find the number that has most primes those less than it
Given an vector x of integer numbers, find the element of x that has the most primes less than it.

11 months ago

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Pluralization
Define function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise. This is handy for displaying messages from a...

11 months ago

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How long does it take to run a bath?
Given the *volume flow rate* (volume/time) of a faucet and the *volume* of a bath tub, find the amount of time it takes to fill ...

11 months ago

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Carnot cycle
Carnot engine is considered the most efficient heat engine.When operated between two temperatures T1 and T2, the efficiency is g...

11 months ago

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Find the Peak Particle Velocity on a ETL structure
PPV is a vibration parameter that can connect stress to a structure, it is measured in mm/s or mm/s-1. The higher the PPV the mo...

11 months ago