Math Suga is a complete utility to calculate mathematical equations, lets you to calculate mathematical equations with various features. A techincal documentation program with the following features
1. Writing Equations
2. Graphing Equations
3. Drawing Basic Shape
4. Drawing Electrical Components

Math Suga Features:
1. Automatically evaluates mathematical equations
2. Generate graphs of an equations
3. Drawing of two dimensional objects such as lines, circles, rectangles etc
4. Writing Text
5. Saving previously drawn objects to components
6. Drawing electrical circuits using predrawn objects in components
7. Generate FreePCB compatible PCB Netlist
8. Generate Spice Netlist
9. Generate Bill of Materials

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this calculator software.