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Friedel Hartmann


Last seen: 4 days ago |  Active since 2017

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Pizza!
Given a circular pizza with radius z and thickness a, return the pizza's volume. [ z is first input argument.] Non-scored bonus...

1 year ago

Answered
Plotting image and data changes y-axis direction. Why and how to fix this?
Does the command axis ij % makes the y axis point downward placed after the plot command, help?

2 years ago | 0

Answered
How can I obtain the eigenvector from a matrix?
[Vectors, DiagonalWithValues] = eig(m1) ListEvalues = diag(DiagonalWithValues)

2 years ago | 0

Answered
how to plot this function
x=[-1,0.1:1,1]; psi0=(1/pi)^0.25*exp(-x.^2/2.); % <---------------------- plot(x,psi0)

2 years ago | 0

Answered
problem with solving system of differential equations
% Example: solve -u''(x) = sin(x) syms up(x) u(x) eqns = [diff(up,x) == -sin(x), diff(u,x) - up == 0]; % -up' = s...

3 years ago | 0

Answered
problem with solving system of differential equations
I think your problem are the second derivatives. Matlab can only solve differential equations where the leading term(s) are firs...

3 years ago | 0

Solved


Return area of square
Side of square=input=a Area=output=b

3 years ago

Solved


Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

3 years 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 ...

3 years ago

Solved


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

3 years ago

Answered
Plot 3rd differential equation
syms x y(x) D1y = diff(y,1) D3y = diff(y,3) dsolve(D3y - 3*D1y + 2*y == x^2 * exp(x),x)

3 years ago | 0

Answered
Calculating the deformation gradient for a 3D surface
You can calculate the gradient of the displacement field u (3 components), which is a function of (x,y,z) and which is an expans...

3 years ago | 0

Answered
How can i get the fourier series of any given function
clear syms x f(x) k fh(x) p(x) ph(x) % a0 = a0 Formel /2 iTerme = 8; sco = zeros(1,iTerme); cco = zeros(1,iTerme); ...

3 years ago | 1

| accepted

Solved


Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

4 years ago

Solved


Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

4 years 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:...

4 years ago

Solved


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...

5 years 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....

5 years 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...

6 years ago

Answered
preference could not be accessed
I had activated OneDrive Files On Demand on the computer and this feature is incompatible with MATLAB, seemingly because in th...

7 years ago | 0

| accepted

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preference could not be accessed
On starting Matlab Warning: "D:\OneDrive\Dokumente\Matlab" using the Custom Working Folder preference could not be accessed....

7 years ago | 2 answers | 0

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