Community Profile # David Kusnirak

Last seen: 1년 이상 전 2012년부터 활동

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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...

4년 이상 전 | 답변 수: 1 | 0

### 1

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You just measured its surface area, that is the input.

약 5년 전

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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...

5년 이상 전

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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

5년 이상 전

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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...

5년 이상 전

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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...

5년 이상 전

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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://...

5년 이상 전

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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...

5년 이상 전

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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. ...

5년 이상 전

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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...

5년 이상 전

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

5년 이상 전

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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...

5년 이상 전

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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...

5년 이상 전

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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...

5년 이상 전

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

5년 이상 전

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

5년 이상 전

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

6년 이하 전

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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]

6년 이상 전

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

6년 이상 전

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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...

8년 이하 전

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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:...

8년 이하 전

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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...

약 9년 전

질문

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...

9년 이상 전 | 답변 수: 3 | 0

### 3

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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...

10년 이하 전 | 답변 수: 1 | 0

### 1

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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.

10년 이하 전 | 0

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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...

10년 이하 전 | 답변 수: 1 | 0

### 1

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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...

10년 이하 전 | 0

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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...

10년 이하 전 | 답변 수: 1 | 0

### 1

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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...

약 10년 전 | 0

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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...

약 10년 전 | 0