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Reverse order of X axis
Building on @Image Analyst's comment, reversing the x-tick labels Exp = 0:15; % Days to expiration P = linspace(10, 30, leng...
ungefär 18 timmar ago | 0
| accepted
How to get a data set using Mean and standard deviation
mu=63; sigma=2.3; %generate normally distributed numbers y=randn(1,10); y=sigma*(y-mean(y))/std(y)+mu mean(y) std(y)
2 dagar ago | 0
| accepted
I want to obtain value of "W" for different combination of values of (psi,r) example. "W" for (psi=0.0001,r = 2.1891) ; (psi=0.001,r = 2.1940); (psi=0.01,r = 2.2373) and so on
%loop psi=[0.0001,0.001,0.01]; r=[2.1891,2.194,2.2373]; for i=1:numel(psi) W(i)=calculateW(psi(i),r(i)); end W %array...
3 dagar ago | 0
| accepted
Solved
Image Processing 2.1.1 Planck Integral
Integrate the Planck function in Lambda (um) at T (K) accurately and quickly to find Radiance for a Lambertian source. Planck...
3 dagar ago
find node with maximum degree
Your "label" seems incorrect. node=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15]; degree=[11 11 12 10 15 10 8 14 12 1 8 6 2 18 5]; de...
3 dagar ago | 0
Solved
Choose group with people
How many ways can you choose n groups of n people from n^2 people, assuming the groups are distinct? The number of people is gi...
5 dagar ago
Solved
Split bread like the Pharaohs - Egyptian fractions and greedy algorithm
How would you split 5 loaves of bread among 8 people in all fairness? Get a hint from the Pharaohs. 5/8 = 4/8 + 1/8 , i.e. each ...
5 dagar ago
Solved
GJam: 2013 Rd1a Bullseye Painting
<http://code.google.com/codejam/contests.html Google Code Jam> 2013 Round 1a Bullseye challenge is to determine how many full ri...
7 dagar ago
Solved
GJam 2012 Qualifier: Tongues
This Challenge is a Warm-Up for <http://code.google.com/codejam/schedule.html Google Code Jam 2014> Qualifying round coming up o...
8 dagar ago
Solved
Looking for Squares
Need n squares that equal one square all together, none zero, none fractured. For example, calling squares(2) should output [16...
8 dagar ago
Solved
Sum the elements in rows of the Levine triangle
The Levine triangle starts as follows: Row 0: 2 Row 1: 1 1 Row 2: 1 2 Row 3: 1 1 2 To construct each row, r...
8 dagar ago
How to set bottom repeating elements in matrix to NaN?
Edited as per a comment a=[1 2 3 2 1 3 3 1 1 3 1 2 1 2 3 3 2 1 1 2 1 2 1 3 1 2 3 1 2 1]; for j=1:2 ...
8 dagar ago | 0
Filter Matrix over a specific value
The new dimension would be 1x5, not 1x4 data=1:10 data(data>5)
11 dagar ago | 1
| accepted
check 2 same numbers in a matrix
y= [80 39 101 39 101 175 237 172 232 168 232 168 104 40] nnz(y==39)==2 nnz(y==168)==2
11 dagar ago | 1
| accepted
Solved
AES SubBytes() Transformation
Given a 16x2 input character hexadecimal array representing the AES state, execute the AES algorithm SubBytes() transformation a...
11 dagar ago
For loop to make an array from workspace variables
The way you have written your loop, the variable xlength gets overwritten every iteration. %Concatenating in a char array xlen...
11 dagar ago | 1
Limiting bulitin function (sine)
You have to call your function for each value of x and store it in another variable and then plot it, as your function is define...
12 dagar ago | 1
| accepted
Create a vector to represent the polynomial p(x)=4x5−3x2+2x+33. a) Find the roots p(x) b) The value at p(4)
Check out how to Create and Evaluate polynomials, roots and polyval
12 dagar ago | 0
how to return indices?
Based on your comment - %random data y=randi(30,2,3,4) z=NaN(2,3,4); z(y<15)=y(y<15)
13 dagar ago | 1
| accepted
How to remove rows in a cell array with a number of Nans major than a threshold
%random data y={NaN(1,50);[zeros(1,5) NaN(1,35) ones(1,25)];[primes(100) NaN(1,37)];... [0.5*(1+sqrt(5)) pi exp(1) NaN(1,5...
13 dagar ago | 1
| accepted
MATLAB is taking too much time to solve the following integral?
integral is used for numerical integration of functions, not partial integrations. It expects numerical value for 2nd and 3rd in...
14 dagar ago | 0
| accepted
Solved
Local Extrema
Given a 2D (m,n>1) matrix, replace an element if it is not a local extrema (minima/maxima), with 0 (zero). Check the 3 neighbou...
14 dagar ago
minimun value in a column matrix with its index
A=[0; 5 ;6 ;9 ;55] A(A~=0) %when you do this, your vector changes Method 1 minvalue=min(A(A~=0)) rowidx=find(A==minvalue) ...
14 dagar ago | 1
| accepted
Problem
Local Extrema
Given a 2D (m,n>1) matrix, replace an element if it is not a local extrema (minima/maxima), with 0 (zero). %Example x=[1 ...
14 dagar ago | 0 | 4 solvers
How to find peaks in matrix the rest are 0
Run a double for loop through all the elements A = randi(50,7,11) %sample matrix B=zeros(size(A)); for i=1:size(A,1) for...
15 dagar ago | 0
| accepted
Extract number from cell with decimal
y={44.10}; befdec=floor(y{1}) aftdec=rem(y{1},1)
16 dagar ago | 1
| accepted
Problem
Hyperperfect Numbers
A k-hyperperfect number is a natural number n for which the equality n = 1 + k(σ(n) − n − 1) holds, where σ(n) is the divisor ...
16 dagar ago | 1 | 1 solver
How to save multiple matrices in multiple files? I solved the first two parts using for loop but couldn't do the 3rd one.How to save these multiple matrices in separate files?
%Saving magic matrices in files for n=1:7 A=magic(5*n+15); filenames=sprintf('magicmatrix_%d.mat',n); save(filen...
17 dagar ago | 1
| accepted