A résolu

Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

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Solve a System of Linear Equations
Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

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Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

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Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

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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...

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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...

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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:...

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Question

How to change an symbolic equation into wanted form ?
I want to change into , how should I make it by symbolic calculation ? syms epsilon_r epsilon_re epsilon_theta epsilon_thetae ...

presque 3 ans il y a | 1 réponse | 0

Question

In an equation, is that possible to give two uknowns'ratio expression by using "solve" function or other accessible way ?
The equation is , is that possible to get "a/c" directly by "solve" function or other symbolic functions? syms p p0 a r k alpha...

presque 3 ans il y a | 1 réponse | 0

Question

How to get the ceofficients of a expression derived by ODE or integral ? For exampli,C1 and C2 in u
syms rho a b E omega u(r) mu sigma_r=E/(1-mu^2)*(diff(u,r)+mu*u/r); sigma_theta=E/(1-mu^2)*(mu*diff(u,r)+u/r); u=dsolve(diff(...

presque 3 ans il y a | 1 réponse | 0

Question

In solving ordinary differential equations of elasticity, I got the following hint“Unable to find symbolic solution”.How should I modify the solution
syms sigma_theta(r) sigma_r(r) p p0 E mu a b u=r/E*(-mu*sigma_r+(1-mu)*sigma_theta); eqn=[2*(sigma_theta-sigma_r)/r==diff(sigm...

presque 3 ans il y a | 1 réponse | 0