Algebrus software is rich on computational capabilities and
has plenty of features that make any kind of calculations
fast and easy. It could be as powerful as an expensive
software for mathematical calculations or as simple as small
"evaluatewhiletype" expression calculator (in the compact
console mode).
Calculations

Operations with vectors, matrices, polynomials, and fractions

Complex and quaternion numbers support

More than 250 builtin mathematical and analysis routines

Userprogrammed procedures and functions

Local and global multivariable optimization

Algebraic and differential equations and equation system solving

Linear algebra, eigen values, Fourier analysis and many more

Geometry problems solving

Statistical data analysis and data fitting

Converting to and from many dimensions of 20 different
kinds of
physical and mathematical quantities

More than 100 fundamental physical constants
Graphs plotting

2D and 3D graphic plots of functions and data

Lines, parametric lines, surfaces, height maps, contour lines

Scattered plots, error and field plots, different charts and diagrams

Spectrum, Histogram, bihistogram, probability, lag, correlation
plots

Compass and pie charts

Linear, semilog, logarithmic scales and polar coordinate
system

Highly customizable graphs appearance and realistic rendering

Plotting graphs in many different but simple ways

Exporting graphics as bitmaps and metafiles

Interactive arbitrary rotation of 3D graphs
Data import and export

Import and export data from and to standard and custom formats

Files, clipboard, and RS232 as data sources are supported

User programmable type specific data import/export filters

Copy/Paste operations with standard formats

Variable of any type (including userdefined) can be serialized
by a single function call
User interface

Simple and interactive user interface for functions evaluation

Compact and full console modes

"Evaluatewhiletyping" mode

Decimal, binary, and hexadecimal integer formats

Syntaxhighlighted XPascal editor

Syntaxhighlighted command console and expression editors

Context based help search

Highly customizable user interface

Preloading external libraries

Editing matrices and vectors in a spreadsheet

Expressions can be entered almost everywhere
Many additional computational capabilities are provided by
the standard
toolboxes. 
Main console in a full mode
Main console in a compact mode
2D graph
3D graph
Evaluator
Plotter
Workspace editor
