School Helper Chrome 插件, crx 扩展下载

                    
Mathematical tools for quick help. By: Nicholas Zivkovic.
This collection of school related resources can be very useful.  More specifically, this extension has tools useful for geometry classes.
The tools included are:
• Trig Helper - A trigonometry calculator useful for finding unknowns in triangles.
• Volume Helper - A volume and surface area calculator for 3D figures.
• Secret Notes -  A note keeping tool that lets you quickly access any notes that you have whenever you are in chrome.
• Circle + Arcs -  A tool useful for finding the arc length and sector area in circles.
• Polygon Area + SA - A tool capable of finding the area and perimeter of any regular polygon.
(NEW) Vector Math - Find the components of a vector or add two vectors together.

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