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# CD

Last seen: 6 days ago Active since 2019

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Question

How may one digitize a curve from an image
The attached jpeg contains battery discharge curves at various discharge currents (0.68 to 10 A). I'd like to create arrays (...

20 days ago | 2 answers | 0

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Question

How to quickly "plug in" numerical values into symbolic equations to get a numerical result
Setup: syms s fs = (-2*(s-1))/((s+1)*(s+2)); fs1 = (1/s)*fs; yt1 = ilaplace(fs1) ...

5 months ago | 1 answer | 0

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Question

Thoughts on improving function execution time?
Matlab Community/Experts, I was able to reduce the execution time of the attached function from about 120 hours down to about...

1 year ago | 0 answers | 0

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Question

Does Matlab solver allow integration?
I know how to use the solver to solver an ode: % L*diL/dt = -R*iL syms iL(t) R L Vo cond = iL(0) == Vo/R ode ...

1 year ago | 1 answer | 0

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Question

How to speed up Matlab startup and shutdown - hangs around in Task Manager about 3 minutes after the Matlab application closes
Any thoughts on how to speed up Matlab startup and shutdown? Matlab application hangs around in Task Manager about 3 minutes ...

2 years ago | 1 answer | 0

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Question

Need to test all permutations
Say I have the following: A = [1 2 3], B = [1 2], C = [4], D = C + B*A I need D to contain all permutations of C+B*A: D1 = 4...

3 years ago | 1 answer | 0

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Element multiplication and subtraction
The second solution (M2) matches my results via excel. Thank you!

3 years ago | 0

Question

Element multiplication and subtraction
I'd like to run the following though I keep getting element multiplication/division errors: Ron = 0.012; RL = 0.003; R ...

3 years ago | 3 answers | 0

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Question

Looking for an identity or process to break one function into to
Would like to go from here: (A'*C - B*C) / (A + B) to A'*C/A - B*C/(A*(A+B)) Can anyone name this identity or process...

3 years ago | 1 answer | 0

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Question

tf2zp how to use k value
Setup: 2_a Coef and pole/zero pairs and gain (k) aN = 2.11e-12; bN = 3.90e-6; cN = 0; aD = 1.07e-10; bD = 2.97e-5...

3 years ago | 1 answer | 0

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Question

how to plot constant gain with bode
How does one plot a constant gain with bode? The following example gives me the following error: R1 = 81800; R2 = 1...

3 years ago | 1 answer | 0

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step function with rise and fall times?
I understand how u is "shaped". Why did you multiplied Zo by 200 (y*200)? "plot(t,y*200)" What does function "tlim" do? Loo...

3 years ago | 0

step function with rise and fall times?
How exactly does one us the lsim function? I added "step(Zo)" and "lsim(Zo, u, t)" below to compare results. With step I s...

3 years ago | 0

Question

step function with rise and fall times?
I'm looking for something similar to a step function where I can adjust the rise time, fall time and magnitude of the step heigh...

3 years ago | 2 answers | 0