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getting min & max of a function for different y's
Try this: x = -10:0.1:10; for i=1:200 y= 0.005*i; f1 = @(x) trapmf(x,[-2 0 0 2])-y; for ij = -10:0.01:10 ...
mer än 10 år ago | 0
Is it possible to numerically label a segmented image?
Hello! Try this: M = im2uint8(label/NUM); imshow(M) s = regionprops(M, 'Centroid'); hold on for k...
mer än 10 år ago | 0
| accepted
How to orthogonalize a signal in respect of another signal ????
Hello! Have a look at this thread: <http://www.mathworks.com/matlabcentral/answers/2216-projecting-a-vector-to-another-vecto...
mer än 10 år ago | 0
Why is my function not defining my outputs and just returning "ans"?
In the script where you are using the function you need to define a variable e.g ABC = noise_removal(data); Then it will ...
mer än 10 år ago | 0
| accepted
Binning 2D set of coordinates
imagesc flips the image I think. This is from the help: imagesc(x,y,C) displays C as an image and specifies the bounds of the x-...
mer än 10 år ago | 0
How to convert 27625 to base 10 from base 7 ?
It cannot have number 7 in it if it is in base 7. Otherwise you would do it like this: base2dec('26625',7)
mer än 10 år ago | 2
| accepted
How to shift date-time variable to a common start-date/time
Try this: shifted_date = datetime(actual_dates) - t_diff
mer än 10 år ago | 2
Matlab crashes on me every time I get an error message in the command window.
Also, looking at the crash log generated by matlab could help to find the reason. Look at this thread: http://www.mathworks.com...
mer än 10 år ago | 0
My code primarily depends on the diameter or "d" as it is defined, however changing it to a smaller value beyond 0.001, all the results just go to infinity. How do i get around the rounding issue (it seems) ?
I think it's not a rounding issue. In Vy(i+1) = (Cd*A*rho*(Uy-Vy(i))^2*dt)/(2*m) + Vy(i); The fraction (Cd*A*rho*dt)/(2*m) is ...
mer än 10 år ago | 0
Solved
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...
mer än 10 år ago
Solved
Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...
mer än 10 år ago
Solved
Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...
mer än 10 år ago
Solved
Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...
mer än 10 år ago
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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...
mer än 10 år ago
Solved
Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....
mer än 10 år ago
Solved
Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...
mer än 10 år ago
Solved
Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
mer än 10 år ago
Solved
Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...
mer än 10 år ago
Solved
Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...
mer än 10 år ago
Solved
Create a Matrix of Zeros
Given an input x, create a square matrix y of zeros with x rows and x columns.
mer än 10 år ago
Solved
Normalize by maximum
Subtract the maximum value in a column from the corresponding columns of a matrix.
mer än 10 år ago
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
mer än 10 år ago
Solved
Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...
mer än 10 år ago
Solved
Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...
mer än 10 år ago
Solved
Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...
mer än 10 år ago
Solved
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
mer än 10 år ago
Solved
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:...
mer än 10 år ago
