https://wccftech.com/todays-list-of-paid-apps-that-are-free-or-on-sale-at-the-play-store-including-intruder-catcher-lock-screen-and-app-protection-and-more-2/

Features:

– plot cartesian functions with intersections

– plot polar- and spherical functions

– plot parametrical equations

– plot complex functions (draw real part & imaginary part)

– plot vector fields in 2D and 3D

– plot implicit equations in 2D and 3D

– plot contours of your functions

– complex numbers

– vectors & matrices

– truth- and value tables

– trigonometrical and hyperbolic functions

– piecewise-defined functions

– logarithmic functions

– logical & binary operators

– definite integral

– n-th derivations

– statistical functions

– physical and mathematical constants with units

– animate variables

– share content with other apps

– no network connection required

Download Visual Math 4D – Graphical Calculator