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Nathaniel


ATK Space Systems

62 total contributions since 2012

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Answered
Simulink Project with R2010b
I think that Simulink Project first shipped with release 2011b. If you're asking if there is some way to add Simulink Project...

plus de 6 ans ago | 0

| accepted

Question


Why isn't there a bsxfun block in Simulink?
Recently, I have found myself adding 1-line MATLAB Function Blocks to some models, of the form (though not necessarily always wi...

plus de 6 ans ago | 1 answer | 1

1

answer

Answered
Solving a Cubic Equation
The built-in function *roots* is what you're looking for.

presque 7 ans ago | 0

| accepted

Answered
better way to improve performance of my code
Using varargin is what's killing you. You can get avoid this by constructing the cell array in the calling code, rather than re...

environ 7 ans ago | 0

Answered
Input parser: default argument depends on another required argument, how to do this?
function yourFunction(n, varargin) p = inputParser; p.addRequired('n', @(x)(true)); p.addParamValue('opt1', zer...

environ 7 ans ago | 0

Answered
How to define a variable that store its value after closing MATLAB file?
If you're getting undefined variable errors for something you thought was supposed to be a global, then you haven't defined it t...

environ 7 ans ago | 0

Answered
getting error Subscript indices must either be real positive integers or logicals.
I'm assuming that you are intending p to operate as a function, but maybe you are not passing in a function handle? Matlab ap...

plus de 7 ans ago | 1

| accepted

Answered
structure in class
Have a look at inputParser. My typical class constructor goes something like this: function obj = myclass(varargin) p =...

plus de 7 ans ago | 2

Answered
read data from filenames in dir structure with function
Is this the first line of read_datafiles.m ? function [data1 data2] = read_datafiles(files, PathName) I would guess t...

plus de 7 ans ago | 0

| accepted

Answered
Slow down when accessing arrays
How much memory in your computer, and how big is N? If you run out of available physical memory, then you will spend a lot of t...

plus de 7 ans ago | 0

Answered
Adding zeroes to Row Vector using a script
It would be simple if you guaranteed that numel(x)/M is always an integer, but without that guarantee: function y = zero_in...

plus de 7 ans ago | 0

| accepted

Solved


Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

plus de 7 ans ago

Solved


radius of a spherical planet
you just measured its surface area, that is the input.

plus de 7 ans ago

Solved


Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

plus de 7 ans ago

Solved


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...

plus de 7 ans ago

Solved


Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

plus de 7 ans ago

Solved


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

plus de 7 ans ago

Solved


inner product of two vectors
inner product of two vectors

plus de 7 ans ago

Solved


Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

plus de 7 ans ago

Solved


Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

plus de 7 ans ago

Solved


Find the alphabetic word product
If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....

plus de 7 ans ago

Solved


Quote Doubler
Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

plus de 7 ans ago

Solved


Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

plus de 7 ans ago

Solved


Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

plus de 7 ans ago

Solved


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

plus de 7 ans ago

Solved


Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

plus de 7 ans ago

Solved


Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

plus de 7 ans ago

Solved


Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

plus de 7 ans ago

Solved


Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

plus de 7 ans ago

Solved


Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

plus de 7 ans ago

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