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# There are real solutions?

Can $$y$$ and $$x$$ be real numbers? Does this system have solutions? Chemical reaction S+E=SE=P+E

Note by Raffaele Piccirillo
6 months, 2 weeks ago

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Woah. What were you trying to solve? · 6 months, 1 week ago

Modelling an enzimatic reaction :) · 6 months, 1 week ago

Using? A variation of Michelis-Menten? · 6 months, 1 week ago

Yes =) stating the rate of conversion x in different way :) · 6 months, 1 week ago

Haha woah cool! I knew it would be that :P
What about approximations? If you assume some concentrations/rate constants are much larger than others, then you can neglect many terms. But I'm sure you've thought about this already. · 6 months, 1 week ago

this is already the reducted model :) but the two therms can't be calculated so easy by my pc xD · 6 months, 1 week ago

Are x and y concentrations?
If so, then there must be some real solution, right? (as we're modelling a real-world chemical reaction.) · 6 months, 1 week ago

0<y<1 and 0<x<0.1; y is a constant;x is the inverse of a time =) · 6 months, 1 week ago

Ah okay, now I'm seeing the problem. I can't really help you much more though - have you tried Mathematica Online? · 6 months, 1 week ago

Not yet,I don't know the website :) · 6 months, 1 week ago

Oh sure, here it is. There's a fifteen day free trial, which should be enough for your computations. · 6 months, 1 week ago