Scientific Calculator

Pyrogram - this is a good calculator for students and people hungry for knowledge.
Its features include:
  * Calculator
  * Plotting functions
  * Converter
And also has sections such as:
  * Mathematics
  * Physics
  * Geometry
In the math:
  * Equations
  * Trigonometry
  * Fraction
  * Derivative, Primitive, definite integral
In the physics:
  * Kinematics
  * Dynamics
  * MKT
  * Properties bodies
  * Electrostatics
The section geometry:
  * Triangle
  * Square
  * Rhombus
  * Rectangle
  * Line
Many sections and functions at this stage of development.