Topic: How to draw the Lissajous graph [f(x) vs g(x)] of a Memristor?

Hi everyone,

I'm trying to get the characteristic curve (Lissajous Figure) of an electronic device called MEMRISTOR.

Given:

- the input voltage v(t) = sin(t)

- the output current i(t) = sin(t)/sqrt(1+B*(1-cos(t)))

Where B is any constant between -0.49 and 0.49

How can I draw the characteristic curve v(t)/i(t) ?

Thanks in advance for any help on this topic!

Re: How to draw the Lissajous graph [f(x) vs g(x)] of a Memristor?

First You can use Function|Custom functions/constants to create the constant B and the two functions. You can give B any value you want:

B = 0.2
v(t) = sin(t)
i(t) = sin(t)/sqrt(1+B*(1-cos(t)))

Next you use Function|Insert function to plot the function f(x)=v(x)/i(x).
You can use Calc|Animate to see what happens when B is changed.

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Re: How to draw the Lissajous graph [f(x) vs g(x)] of a Memristor?

To refine a bit, "i" is one of reserved names, so i(t) shell be renamed, possibly as c(t).

If pinched hysteresis curve is to be displayed, Karl_o should use parametric function and assign x(t)=v(t), y(t)=c(t). That was perhaps ment by v(t)/i(t) construction.