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Calculate the Distance to Source of Lightning
Lightning discharge heats air rapidly with lightning channels reaching temperatures of up to 50,000 degrees Fahrenheit (which is...

2 years ago

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Percentage profit:2
If you are selling at x dollar, you are facing r1% profit; what will be the selling price for making r2% profit?

2 years ago

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Construct a "diagAdiag" matrix
Construct a matrix whose elements begin from 1 and end at n^2 with the order of arrangement as shown below: For: n = 4 ...

2 years ago

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Iccanobif numbers 1
There are a lot of problems in Cody that deal with Fibonacci numbers (1, 1, 2, 3, 5, 8, 13, 21 etc...) so let's turn things arou...

2 years ago

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Which one is More bigger?
we have two input like (x,y) our output (z) must wich one is bigger input.

2 years ago

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Replicate elements in vectors (★★★)
(copy of Prob 867) Replicate each element of a row vector (with NaN) a constant number of times. Examples n=2, A=[1 2...

2 years ago

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basic matrix operations: rotate and find sum of diagonal elements of the resultant matrix
For given input matrix a, rotate it by 90 degrees and find the sum of the diagonals. Example: Input: a = 1 ...

2 years ago

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Circular Shift Me
Given a vector v=[1 3 6 9 11], circular shift them while iterating m=[1 3 6 9 11; 11 1 3 6 9; 9 11 1 3 6; 6 9 11 1 3; 3 6 9 1...

2 years ago

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Solve system of equation!
Given provided system of equation, and find x and y. System of equation can be expressed as each term's coefficient. For exam...

2 years ago

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Pattern Recognition 1 - Known Unit Length
You will be given various arrays, composed of numbers or strings. For this problem, the known pattern unit length is three. Writ...

2 years ago

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means
Calculate the arithmetic, the geometric and the harmonic mean of a given vector (with positive elements) and return them in a ve...

2 years ago

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Polynomial Evaluation
Create a routine that takes a list of coefficients of a polynomial in order of increasing powers of x; together with a value of ...

2 years ago

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Average valid values of arrays
Given a 1D array (column or row vector), compute the average of valid values. Valid values are defined via two thresholds: minVa...

2 years ago

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Diophantine Equations (Inspired by Project Euler, problem 66)
Consider the quadratic Diophantine equation of the form: x^2 – Dy^2 = 1 When D=13, the minimal solution in x is 649^2 – 13...

2 years ago

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Procrustean bed
Given a vector x and an integer n, convert x to a vector of length n by (1) chopping off the end if it is too long, or (2) addin...

2 years ago

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Use a timetable to analyze a train timetable (Part 3)
Oh no, you missed your train to Boston (again?)! How many times can you miss that train today? (In other words, how many Boston ...

2 years ago

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Elastic Collision 001: 1-D
Elastic Collision of two particles. <http://en.wikipedia.org/wiki/Elastic_collision wiki Elastic Collision> Solve Conservat...

2 years ago

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Find all prime factors of the input
Given an input x, find its all prime factors. Return the vector with all factors in ascending order. Efficiency is the key here...

2 years ago

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Check if integer is a prime number
Check if integer i is a prime number. Returns logical true '1' if it is.

2 years ago

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Get the side length by using the law of cosines.

2 years ago

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Calculate feeling temperature before climbing a mountain
I sometimes climb a mountain. As is well known, when the altitude becomes 100 (m) higher, the temperature lowers by 0.6 degrees...

2 years 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 + s(...

2 years ago

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Vector of digits (★★)
Given a positive integer x, construct a vector y with all the digits of x in the order of appearance in x. Thus, if x = 172...

2 years ago

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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...

2 years ago

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Solve t^(a*x^2+b*x+c)=s
Solve t^(a*x^2+b*x+c)=s. Return x vector as result. Example a=1, b=2, c=1, t=3, s=15. Result x(1)= 0.5700 x(2)=-2.5700 H...

2 years ago

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find number of times of occurrence of the most frequent number in a row vector
In a given row vector, find the number of times a mode of a row vector has occurred example: in [2 5 5 5 5 3], output is 4 ...

2 years ago

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Count given word x in text.
Count how many times given word x repeats in text.

2 years ago

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Determina el número de cifras de un número
Crea una función que te devuelva el número de cifras de un número. Algunos ejemplos para ayudarte serían: El número 125 tie...

2 years ago

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Look Up Mapping
Let the input is A = {[] [] [] [1] []}; B = {'A','B','C','D','E'}; Mapped Output = 'D';

2 years ago

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polar inertia
given locations of a set of unit masses on complex plane, find polar moment of inerta about the origin. for example output 4 if ...

2 years ago