# PRM

Geek Researcher

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**Content Feed**

Solved

The Piggy Bank Problem

Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

24 giorni ago

Solved

means

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

11 mesi ago

Solved

Toeplitz Matrix

For a given square matrix of order n-by-n check whether this is a Toeplitz matrix or not. Return true if it is.

11 mesi ago

Solved

poll: would you like the regexp (?@cmd) functionality to be banned in Cody?

This problem is a poll (and a little bit of "white hat hacktivism" as well) regarding Cody users sentiment about the use of rege...

11 mesi ago

Solved

how many of the entries are positive?

Given x= sin(linspace(0,10*pi,100)), how many of the entries are positive?

11 mesi ago

Solved

Related Vectors

I have two vectors A & B. If the values in vector A is zero then the corresponding value in vector B should be zero. Example:...

11 mesi ago

Solved

Sum of odd numbers in a matrix

Find the sum of all the odd numbers in a matrix. Example x = [2 3 5 7 1 4 11] y = 27

11 mesi ago

Solved

04 - Scalar Equations 3

Define the variables a, b, and c: <<http://samle.dk/STTBDP/Assignment1_4-a.png>> <<http://samle.dk/STTBDP/Assignment1_4-b....

11 mesi ago

Solved

Matlab Basics - Rounding III

Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

11 mesi ago

Solved

Mode

Find the mode of the vector Assumption: no vector is bimodal Example 1: input=[1 2 3 4 4]; output=4 Example 2: input=[7...

11 mesi ago

Solved

Help the Patriots get to the Super Bowl

Given a football by the Patriots, return it to them with 2 psi less air in it. (The original psi is passed as a number to the...

11 mesi ago

Solved

Find the index of elements in a string vector

In the vector of v, find the index of elements specified by a. v = ["Lion","Koara","Elephant","Snake","Dog","Cat","Camel"]; ...

11 mesi ago

Solved

How many figures currently exist?

Return the number of figures that exist at any given time.

11 mesi ago

Solved

Find out next state (NS) of T Flip-Flop.

Find out next state (NS) of T Flip-Flop based on previous state (PS), inputs. Learn more about T Flip-Flop theory here: <htt...

11 mesi ago

Solved

Replace Negative(-) by 0 and positive by 1

In a given Matrix Replace all element having *Negative sign with 0* and *Positive elements with 1* .

11 mesi ago

Solved

Insert Special character in character cell array.

input={'a','b','c'} then ans={'a','*','b','*','c'}

11 mesi ago

Solved

Back to basics 10 - Max Float

Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive floating-point number MATLAB can han...

11 mesi ago

Solved

07 - Common functions and indexing 6

Create a variable _m_ as a magic square with the size 6 x 6 Magic squares are defined as square matrices, where the sum of a...

11 mesi ago

Solved

03 - Matrix Variables 1

Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3a.png>> A 9x9 matrix full of 2's (Hint: use *ones* o...

11 mesi ago

Solved

"Low : High - Low : High - Turn around " -- Create a subindices vector

Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

11 mesi ago

Solved

Sums with Excluded Digits

Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

11 mesi ago

Solved

Specific Element Count

Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...

11 mesi ago

Solved

Magic!

Check whether the input matrix is a normal magic square: <http://en.wikipedia.org/wiki/Magic_square> Output the logical va...

11 mesi ago

Solved

Half?

If you toss an even number (x) of coins, what is the probability (y) of 50% head and 50% tail?

11 mesi ago

Solved

Wrapping the Tower of Pisa

The famous artist Christo Vladimirov Javacheff, who likes pizza, wants to wrap the well-known Italian tower in paper. It is a ci...

11 mesi ago

Solved

User defined nextpow function

Create a function which will take 2 arguments as n and x, and return y, where, n^y >= abs(x). [ Similar to builtin "nextpow2" fu...

11 mesi ago

Solved

Create a two dimensional zero matrix

You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros. Exam...

11 mesi ago

Solved

Filter AC, pass DC

Input x is the sampled signal vector, may have both AC and DC components. Output vector y should not contain any AC component. ...

11 mesi ago