Recent content by oujea

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    Algorithms learning materials and exercises

    I already tried there but no luck, there is nothing with focus on mathematical background
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    Algorithms learning materials and exercises

    Hello I'm teaching assistant at one university in Bosnia and Herzegovina (department for computer science) and I have recently been chosen to be an assistant at "Introduction to computer algorithms" subject. First few classes are based on mathematical background (induction, recursion, algorithm...
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    How is dx(t)/dt system non-causal

    i found it too, but it did not explain it well...
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    How is dx(t)/dt system non-causal

    A system is memoryless if the output at each time depends only on the input at the same time. A system is causal if the output at each time depends only on the input at the same time or on the prior inputs.
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    How is dx(t)/dt system non-causal

    Hello Can someone please explain me how is system y(t)=dx(t)/dt non-causal and system with memory? I tried it using derivation definition, but I did not understand it. Also I'm interested in integral of x(T)dT (from -inf to to) - is it always causal and how? Do you have any literature or...
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    Help determining where does current flow through diodes

    This is not rectifier, and link you posted did not help me because it shows 4 diodes in Graetz circuit (and it is rectifier), but circuit on my pic is voltage limiter.
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    Help determining where does current flow through diodes

    the circuit on the picture is actually op amp limiter. here is it's characteristic:
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    Help determining where does current flow through diodes

    Unfortunately I didnt find anything helpful (maybe because my english is bad, so I can't search for the right thing). I tried to analyse this, and I found that all diodes (D1, D2, D3, D4) are conducting when Uul is negative. but I'm not sure if I'm right.
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    Help determining where does current flow through diodes

    I have to analyse how it works for different voltage Uul values. I have to find output voltage for all possibilities of the Uul voltage
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    Help determining where does current flow through diodes

    Hello Can anybody help me determine where does current flow in the circuit on the picture below: How it goes when Uul is >0, and how when Uul is negative (<0). There is inverting OP AMP, and Uop will be >0 when Uul is <0, right? And how it goes then through diodes? Zener diodes here...