EngiNotes

EngiNotes is a programmable calculator that allows you to run small code snippets in a Python-like language to visualize complex calculations.

Organize your calculations in notebooks, a collection of code cells that you can run individually to print and visualize data.

It provides routines to manipulate N-dimensional arrays such as scalars, vectors and matrices.

Main Features

- Unlimited notebooks.

- Interactive 2D plots.

- ND-array objects.

- In-app manual (swipe left). No network connection required.

Plots

- Lines.

- Scatter plot for point clouds.

- Fill areas bounded by some function.

General Math

- Operators: +, -, *, /, ^ (power), ' (transpose), @ (matrix multiplication).

- Random number generator.

- Sum, average, min and max.

- Variance and standard deviation.

- Ceil, floor and round functions.

- Logarithms, exponential function and square root.

Linear Algebra

- Solution to systems of linear equations.

- Transpose and inverse matrix.

- Trace.

- Determinant and condition number.

- Eigenvalues and eigenvectors.

- LU factorization.

- Norms: 1, 2 and infinity.

Trigonometric

- Conversion between radians and degrees.

- Sin, cos, tan.

- Inverse sin, cos, tan

- Hyperbolic sin, cos, tan.

Machine Learning Response Functions

- ELU, RELU, leaky RELU.

- Sigmoid and hard sigmoid.

- Tanh and hard tanh.