Gelöst

Back to basics 1 - Saving
Covering some basic topics I haven't seen elsewhere on Cody. Given an input variable 'x', save it to disk in a file named 'co...

fast 7 Jahre vor

Gelöst

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 ...

fast 7 Jahre vor

Gelöst

Who knows the last digit of pi?
There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...

fast 7 Jahre vor

Gelöst

Angle of triangle
For three unknown points a b c, given three sides ab bc ca, find three angles abc bca cab in radians. Your function should b...

fast 7 Jahre vor

Gelöst

2 b | ~ 2 b
Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

fast 7 Jahre vor

Gelöst

Four quadrant inverse tangent function.
Create a function that returns an array P the same size as X and Y containing the element-by-element, four-quadrant inverse tang...

fast 7 Jahre vor

Gelöst

Find the two most distant points
Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

fast 7 Jahre vor

Gelöst

give nth decimal place of pi
max 15th place after the decimal point is ok for now

fast 7 Jahre vor

Gelöst

Recurrence relation
A recurrence relation is given by P(1) := 1 P(n+1) := exp(1) - (n+1)*P(n) Write a function that, given an integer |...

fast 7 Jahre vor

Gelöst

Project Euler: Problem 16, Sums of Digits of Powers of Two
2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26. What is the sum of the digits of the number 2^N? Thanks ...

fast 7 Jahre vor

Gelöst

Increment a number, given its digits
Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

fast 7 Jahre vor

Gelöst

given 3 sides, find area of this triangle
1:3 -> 0; 3:5 -> 6

fast 7 Jahre vor

Gelöst

Least common multiple of many numbers
1:6 -> 60

fast 7 Jahre vor

Gelöst

Maximum running product for a string of numbers
Given a string s representing a list of numbers, find the five consecutive numbers that multiply to form the largest number. Spe...

fast 7 Jahre vor

Gelöst

surface of a spherical planet
you just discovered its circumference, that is the input.

fast 7 Jahre vor

Gelöst

So many choices
For inputs _n_ and _k_ (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. ...

fast 7 Jahre vor

Gelöst

Are you in or are you out?
Given vertices specified by the vectors xv and yv, and a single point specified by the numbers X and Y, return "true" if the poi...

fast 7 Jahre vor

Gelöst

Woodall number
Test whether the input is a Woodall number: <http://en.wikipedia.org/wiki/Woodall_number> _Please do not cheat by simply chec...

fast 7 Jahre vor

Gelöst

Program an exclusive OR operation with logical operators
Program an exclusive or operation *without* using the MATLAB function xor. Use logical operators like |, &, ~, ... instead. ...

fast 7 Jahre vor

Gelöst

All your base are belong to us
Find the base _b_ logarithm of the input decimal number _x_. Express the output as a decimal number. The first argument is the n...

fast 7 Jahre vor

Gelöst

All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

fast 7 Jahre vor

Gelöst

Trimming Spaces
Given a string, remove all leading and trailing spaces (where space is defined as ASCII 32). Input a = ' singular value deco...

fast 7 Jahre vor

Gelöst

Which quadrant?
Given a complex number, output quadrant 'I' 'II' 'III' or 'IV' | II | I | ...

fast 7 Jahre vor

Gelöst

Love triangles
Given a vector of lengths [a b c], determines whether a triangle with non-zero area (in two-dimensional Euclidean space, smarty!...

fast 7 Jahre vor

Gelöst

Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

fast 7 Jahre vor

Gelöst

Triangle Numbers Below N
This is an offshoot of <http://www.mathworks.com/matlabcentral/cody/problems/5-triangle-numbers Cody Problem 5: Triangle Numbers...

fast 7 Jahre vor

Gelöst

Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

fast 7 Jahre vor

Gelöst

pressure to dB?
given x ratio of pressure, find corresponding y dB

fast 7 Jahre vor

Gelöst

The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

fast 7 Jahre vor

Gelöst

Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

fast 7 Jahre vor