Recent content by diegojolin
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Graduate Numerical differentiation with change of variable
I have finally solved it as I wanted to do it at the beginning, I still don't understand very much why this way is working and others i tried not, but so far i am happy with the results... this is the piece of code that once run in MATLAB solved my problem c = 1; e = 1e-3; Zc = @(x) -e.*x./c...- diegojolin
- Post #3
- Forum: Calculus
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Graduate Numerical differentiation with change of variable
Hi all I am trying to solve for an integral whose integrand is a derivative that has a change of variable inside of it. ∫ (dz/dx) * cos(θ) dθ between 0 and pi. I have a function for z(x), and also know the relation between of x and θ, but what I don't know is how to evaluate such...- diegojolin
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- Change Differentiation Numerical Numerical differentiation Variable
- Replies: 2
- Forum: Calculus
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Transient (unsteady) heat transfer over a sphere
I AM DOING A PROBLEM ABOUT TRANSIENT HEAT TRANSFER AND IT SAYS: "A solid sphere of steel has 1 cm of diameter and a initial temperature of T0 =15 ºC. It is placed into a flow of Tinf = 60 ºC where the convection heat coefficient is h = 2000 W/(m^2K): (Density of steel rho = 7832 Kg/m^3 ...- diegojolin
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- Heat Heat transfer Sphere Transient
- Replies: 1
- Forum: Engineering and Comp Sci Homework Help
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Where Can I Find Engineering Exam Questions Online?
Oks, thanks, I've tried and at least the computer seems to work faster this way- diegojolin
- Post #6
- Forum: General Math
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Where Can I Find Engineering Exam Questions Online?
I am trying to solve an equation that involves sum series and the unknown is the number of times i have to add, this is easy to solve just by guessing when the number of additions is small, but if it gets large... is there any analytic way to solve this kind of equations? form: sum (e^n) from...- diegojolin
- Post #4
- Forum: General Math