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'''Memristors''' {{IPA|/memˈrɪstɚ/}} ("memory resistors") adalah kelas
Teori memristor dirumuskan dan namai oleh
{{citation
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|doi=10.1109/TCT.1971.1083337
}}</ref>
However, it would not be until thirty-seven years later, on
{{citation
|last=Tour |first=James M
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|accessdate=2008-04-30
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Being much simpler than currently popular [[MOSFET]] switches and also able to implement one [[bit]] of
|url=http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=207403521
|title='Missing link' memristor created
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[[Berkas:Memristor-Symbol.svg|ka|70px|jmpl|symbol memristor.]]
Memristor secara formal didefinisikan <ref name="chua71"/> sebagai unsur dua-terminal dalam
: <math>M(q)=\frac{\mathrm d\Phi_m}{\mathrm dq} </math>
: <math>M(q(t))=\frac{\mathrm d\Phi_m/\mathrm dt}{\mathrm dq/\mathrm dt}=\frac{V(t)}{I(t)}</math>
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: <math>V(t) =\ M(q(t)) I(t)</math>
Persamaan ini menyatakan bahwa memristansi didefinisikan hubungan linear antara arus dan tegangan, selama tegangan tidak divariasikan. Of course, nonzero current implies instantaneously varying charge.
Furthermore, the memristor is static if no current is applied. If ''I''(''t'') = 0, we find ''V''(''t'') = 0 and ''M''(''t'') is constant. This is the essence of the memory effect.
The
:<math>P(t) =\ I(t)V(t) =\ I^2(t) M(q(t))</math>
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