[BlindMath] Accessing complex graphs

[Sukriti Suri]

Dear all
I need an application/website which would enable me access complex graphs like that of \sin function or any equation I enter into it. I have tried Desmos but didn't find it useful enough. Till date I have been using tactile graphs built using a slate having net-like surface. The output is reasonably good but it is less useful with complex figures and I need someone to draw it for me.
I have not explored sound for graphs navigation for graphs. I found audium good but I don't think it has customizable options. Any help is appreciated.
SUKRITI SURI