Question

Clipping property doesn't work?
It seems that *clipping* property doesn't work for plot objects like *bar*, *stem*, *stairs*. See simple exapmle: plot(1...

12 years ago | 1 answer | 0

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Create a v-notch vector without "sort" function
Given a vector vec, create a v-shaped vector as shown below: vec = [ 10 2 3 89 5 7 90 0 12] ...

12 years ago

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Matrix rotation as per given angle
Given a user defined matrix and angle of rotation, rotate the elements of output matrix as clockwise or anti-clockwise. Angle wi...

12 years ago

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Find and replaces spaces from a input string with *
For a given input string str, find how many spaces are there in the string and replace those spaces with * e.g. str = 'this is ...

12 years ago

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Create an index-powered vector
Given a input vector x, return y as index-powered vector as shown below. Example x = [2 3 6 9] then y should be [...

12 years ago

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Matrix to column conversion
Given a matrix of any size, convert it into a column vector. e.g A=[10 20 30; 40 50 60] then, B = [10; 40; ...

12 years ago

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Pizza value using expression with parentheses
Pizza prices are typically listed by diameter, rather than the more relevant feature of area. Compute a pizza's value (cost per ...

12 years ago

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Getting the indices from a matrice
Getting the indices from a matrice. Inspired by Problem 645. Getting the indices from a vector by the great Doug Hull. Given a...

12 years ago

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Size of this cup?
The given vector has diameter of the cup in mm sampled at micrometer increments in depth from top to bottom, need output in cc a...

12 years ago

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The Dark Side of the Die
It is well-known that opposite sides of a classic hexahedral die add to 7. Given a vector of dice rolls, calculate the sum of th...

12 years ago

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Double Deal
*Description* Given an input vector _v_, return the first element as the first output, the second element as the second outpu...

12 years ago

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Find nearest prime number less than input number
Find nearest prime number less than input number . For example: if the input number is 125, then the nearest prime number whi...

12 years ago

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N-Queens Checker
Picture a chessboard populated with a number of queens (i.e. pieces that can move like a queen in chess). The board is a matrix,...

12 years ago

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Free passes for everyone!
_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): As an addit...

12 years ago

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Volume and area of a sphere
Input(r) - radius Output([v,s]) - volume and area

12 years ago

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Create incrementing array
Given a and b generate an output matrix as shown in following examples: a=2 b=5 output=[2 20 200 2000 20000] a=4 b...

12 years ago

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Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

12 years ago

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Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

12 years ago

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Spot the outlier
All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...

12 years ago

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Find a subset that divides the vector into equal halves
Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...

12 years ago

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Circle plotting on different Planes
Try this code: X = [2 4 5 7]; Y = [0 2 1 0]; Z = [1 3 5 7]; r = 0.5; [x,y,z] = cylinder(r*ones(size(X)),1...

12 years ago | 0

Answered
smoothing plots from data
Are you sure that you want use anti-aliasing? *Linesmoothing* is an undocumented feature. You can use the *smooth* function t...

12 years ago | 0

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We love vectorized solutions. Problem 1 : remove the row average.
Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

12 years ago

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Fahrenheit to Celsius using multiple statements
Given a Fahrenheit value F, convert to a Celsius value C. While the equation is C = 5/9 * (F - 32), as an exercise use two state...

12 years ago

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Einsteinium-253 decay
Radioactive Einsteinium-253 has a half-life of 1,768,608 seconds. Given 1000mg of Einsteinium-253 at t=0 days, how much is lef...

12 years ago

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Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

12 years ago

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Sophie Germain prime
In number theory, a prime number p is a *Sophie Germain prime* if 2p + 1 is also prime. For example, 23 is a Sophie Germain prim...

12 years ago

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Is the input divisible by 3?
Return true if the input is divisible by 3 and false if not.

12 years ago

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select the primes of a vector
Find the prime numbers in a vector

12 years 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 years ago