David Kusnirak
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Question
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...
plus de 7 ans il y a | 1 réponse | 0
1
réponseA résolu
radius of a spherical planet
You just measured its surface area, that is the input.
presque 8 ans il y a
A résolu
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...
environ 8 ans il y a
A résolu
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
environ 8 ans il y a
A résolu
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...
environ 8 ans il y a
A résolu
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...
environ 8 ans il y a
A résolu
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://...
environ 8 ans il y a
A résolu
A Simple Tide Gauge with MATLAB
*∿ ∿ ∿ ∿ ∿ ∿ ∿ ∿* You are standing in a few inches of sea water on a beach. You a...
environ 8 ans il y a
A résolu
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. ...
environ 8 ans il y a
A résolu
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...
environ 8 ans il y a
A résolu
Pentagonal Numbers
Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...
environ 8 ans il y a
A résolu
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...
environ 8 ans il y a
A résolu
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...
environ 8 ans il y a
A résolu
Energy of a photon
*⚛ ☢ ⚛ ☢ ⚛ ☢ ⚛* Given the frequency F of a photon in giga hertz. Find energy E of this...
environ 8 ans il y a
A résolu
Basic electricity in a dry situation
⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ &#...
environ 8 ans il y a
A résolu
How to subtract?
*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...
environ 8 ans il y a
A résolu
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]
environ 9 ans il y a
A résolu
Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.
environ 9 ans il y a
A résolu
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...
plus de 10 ans il y a
A résolu
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:...
plus de 10 ans il y a
A résolu
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...
presque 12 ans il y a
Question
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...
plus de 12 ans il y a | 3 réponses | 0
3
réponsesQuestion
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...
plus de 12 ans il y a | 1 réponse | 0
1
réponseHow 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.
plus de 12 ans il y a | 0
Question
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...
plus de 12 ans il y a | 1 réponse | 0
1
réponseHow 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...
plus de 12 ans il y a | 0
Question
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...
plus de 12 ans il y a | 1 réponse | 0
1
réponsediscrete 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...
presque 13 ans il y a | 0
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...
presque 13 ans il y a | 0
