Geometry Expressions 是一款領先世界的互動式符號幾何系統。
幾何軟體新生代Geometry Expressions,除了具有類似GSP及Cabri的直覺式作圖外,還可以數值或變數方式進行幾何物件屬性的相關演算,亦可將計算結果?出至Maple及Mathematica進行進一步的演算,Maple的愛用者可考慮搭配geometry程式集使用.
可以讓幾何圖形按照符號幾何或數位領域進行定義。繪圖上的測量不再 只是有限的數位，也可以是精確公式的符號。
通過參數，符號動畫可以為你的繪圖帶來生命。通過新的符號機制所有通常的結構都可以使用並且非常強大。
Geometry Expressions 可以作為一個單獨程式使用或者通過 MathML 輸入和輸出與你所喜愛的數學系統聯合使用。可以把 Geometry Expressions 作為你的代數系統的幾何前端。或者把Geometry Expressions 當作幾何系統的代數擴展。
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Geometry Primitives
Constructions
Languages
Quantitative Constraints
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Qualitative Constraints
Import / Export
Transformations
Measurements
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Windows
- Windows Vista
- Windows XP
- Windows 2003 Server
- Windows 2000
- Pentium III 650 MHz or better
- 256 MB RAM
Macintosh OS X 10.2 or better
- Intel processor
- 256 MB RAM
Constraint Based Geometry
Geometry Expressions is a constraint based geometry system. The benefits of this type of system are:
- Many geometric configurations are much more easily specified using constraints than constructions
- It is a much more convenient style for expressing real world problems
- This is the approach used in modern Computer Aided Design (CAD) systems
Symbolic Geometry
In Geometry Expressions if you put symbols in as the values of constraints, you get symbolic expressions out for measurements (see above figure). This means:
- Reinforcing multiple representations (geometric and algebraic) of the same problem
- Symbiosis with CAS (like Maple, Mathematica, Nspire, ClassPad Manager)
- Makes the geometry software extremely relevant in algebra, precalculus and calculus courses, as well as in university and professional engineering contexts.
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