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Modular multiplicative inverse

Modular multiplicative inverse is used for _The Chinese Remainder Theorem_ and _RSA algorithm_. You can visit <http://en.wikiped...

3 giorni ago

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COUNT VOWEL 2

The objective of this problem is to determine the number of unique vowels used in the given string. Now count vowels in STRI...

3 giorni ago

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Pascal's Matrix

Given an integer n ≥ 0, generate the ( _n_+1) × ( _n_+1) lower triangular <http://en.wikipedia.org/wiki/Pascal_matrix P...

3 giorni ago

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Raise Matrix to Power

For a given square matrix x and scalar a, find x^a without using '^' or 'mpower'.

5 giorni ago

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Guess the Coefficients!

Given a polynomial _p_ known to have positive integer coefficients, deduce the values of the coefficients. For example: ...

5 giorni ago

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Subtract two positive numbers

Given a and b as a string, return b-a without using string to number conversion functions. a and b must to be a same size and b ...

5 giorni ago

Problem

Easy Sequences 43: Least Common Fibonacci Number

The Fibonacci sequence is a series whose elements are numbers starting with and , and subsequent Fibonacci numbers are defined...

7 giorni ago | 0 | 0 solvers

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Convert from Base 10 to base 5

Convert the input number from base 10 into base 5: for example: if a(in base 10)= 5 then a(in base 5)= 10

8 giorni ago

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mathematics , probability problem

How many different result can we have, rolling k dice?

8 giorni ago

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Divisors of an integer

Given a number N, return a vector V of all integers that divide N. For example, N = 10 Then V=[1 2 5 10]

8 giorni ago

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Find the solution of algebraic equation

Find the solution of algebraic equation of the form an*x^n + a(n-1)*x^(n-1) + (an-2)*x^(n-2)+...... a2*x^2 + a1*x^1 + a0 = 0; ...

8 giorni ago

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Return 'on' or 'off'

When the input is true, return 'on', otherwise, return 'off'.

8 giorni ago

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The Answer to Life, the Universe, and Everything

A variation of a previous Hitchhiker's Guide to the Galaxy problem. *Inputs:* Life, the Universe, and Everything *Output:*...

8 giorni ago

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Count up then down

Create a function that produces counting up from 0 up to n then down to 0 n=2 --> 0 1 2 1 0 n=3 --> ...

8 giorni ago

Problem

Easy Sequences 42: Areas of Non-constructible Polygons

A constructible polygon is a regular polygon that can be constructed using only a compass and a straightedge. Amazingly, Gauss ...

8 giorni ago | 0 | 0 solvers

Solved

Find the logic

There exists one logic in between input and output. Find it (easy math). Example 1: x=13 then y=339; Example 2: x=26...

9 giorni ago

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Derivative of polynomial

Compute the derivative of a given polynomial. The input is an <http://www.mathworks.com/help/matlab/math/representing-polynomial...

10 giorni ago

Problem

Easy Sequences 41: Boxes with Integer Edges

For this problem, we are asked to write a function that will count the number of boxes with integer edges, that has the same giv...

11 giorni ago | 1 | 2 solvers

Problem

Easy Sequences 40: Quadratic Congruence

Quadratic Congruence is a modular equation of the form: . In this exercise you will be given a vector containing the coefficie...

12 giorni ago | 1 | 3 solvers

Solved

calculate linear convolution two vectors

for e.g in: a = [1 2 3] b = [4 5 6] out: y = [4 13 28 27 18]

12 giorni ago

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Weave two vectors into one

Weave the two given vectors into one as shown below. Example: If a = [1 1 1] b = [0 0 0] then y = [1 0 1 0 ...

12 giorni ago

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Temperature conversion

Convert temperature in degrees Celsius (C) to temperature in degrees Kelvin (K). Assume your answer is rounded to the nearest Ke...

12 giorni ago

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What percentage?

Calculate the output c as the percentage of a on b for given a and b.

12 giorni ago

Solved

Easy Sequences 39: Perfect Squares in Pascal's Triangle

Consider the 2nd, 3rd and 4th diagonals of the Pascal's Triangle, shown highlighted below: ...

13 giorni ago