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David Kusnirak


Last seen: 3 years 前 |  自 2012 起处于活动状态

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统计学

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Matlab COM connection using an actxserver
Hello, I'm running a Matlab script to invoke an another software (Surfer) to calculate grids from data. The code was download...

6 years 前 | 1 个回答 | 0

1

个回答

已解决


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

6 years 前

已解决


Circle/Pentagon Overlap
Your function will be provided with the five vertices of a pentagon (p) as well as the center point (cp) and radius (r) of a cir...

7 years 前

已解决


Back to basics - mean of corner elements of a matrix
Calculate the mean of corner elements of a matrix. e.g. a=[1 2 3; 4 5 6; 7 8 9;] Mean = (1+3+7+9)/4 = 5

7 years 前

已解决


Number of Even Elements in Fibonacci Sequence
Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

7 years 前

已解决


The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

7 years 前

已解决


Spot the First Occurrence of 5
This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...

7 years 前

已解决


A Simple Tide Gauge with MATLAB
*&#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767* You are standing in a few inches of sea water on a beach. You a...

7 years 前

已解决


Is this is a Tic Tac Toe X Win?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

7 years 前

已解决


Extra safe primes
Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

7 years 前

已解决


Pentagonal Numbers
Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...

7 years 前

已解决


Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Submit your answer to this problem a multiple of 5 seconds after the hour. Your answer is irrelevant; the only thing that matte...

7 years 前

已解决


Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

7 years 前

已解决


Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

7 years 前

已解决


Basic electricity in a dry situation
&#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#9889 &#...

7 years 前

已解决


How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

7 years 前

已解决


Add two numbers
Given a and b, return the sum a+b in c.

7 years 前

已解决


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]

8 years 前

已解决


Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

8 years 前

已解决


Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

9 years 前

已解决


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

9 years 前

已解决


Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

11 years 前

提问


How to create Gauss noise within the interval
I have an interval with lower boundary at a = -0.005 and upper boundary b = 0.005. I need to create the Gauss white noise within...

11 years 前 | 3 个回答 | 0

3

个回答

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cell multiplication with a vector
Hi, I have a cell structure (Aa), where each cell is a square sparse matrix and I need to multiply each cell with a vector (f...

11 years 前 | 1 个回答 | 0

1

个回答

已回答
How to increase font size on MacBook Pro Retina Display 15" (Matlab 2013a)?
In the home menu find the preferences button, there you can change the font size.

11 years 前 | 0

提问


How to reduce number of loops
Hello, I have code, which assembles coefficients into large sparse matrix. My coding seems to be inefficient as I use 3 loops...

11 years 前 | 1 个回答 | 0

1

个回答

已回答
How can I save my data in my editboxes to my .mat file?
Hi, if you want to get the written value in the edit box you should use save(filename, get(handles.edit1,'value')); t...

11 years 前 | 0

提问


Ax = b for a lot of different b‘s
Hello, I have a system of equation _Ax = b_, where _A_ is very large (n = 3e5 - 8e5) and sparse coefficient matrix, _b_ is so...

11 years 前 | 1 个回答 | 0

1

个回答

已回答
discrete second order derivative operator for unequally spaced data
Thanks for hints. However I'm not as interested in the solution as in the operator itself, I need to know how does it look and w...

12 years 前 | 0

已回答
How can I move the position of my GUI on the screen from the default?
hi, try to change units from pixels to normalized for example set(handles.figure_main,'Units', 'normalized'); se...

12 years 前 | 0

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