動態知識模型

透過該模型，用戶可以構建互動式幾何圖形。得到的圖形隨後可以用滑鼠進行變 形。透過使用腳本，我們創建了種類繁多的圖形，當應用迴圈或遞迴時，其中一 些圖形會變得非常複雜。 該 DKM 將由 Dr. Geo 改編而來，可作為 DKM 模組和獨立應用程式共同使用。 | canvas r f u | canvas := DrGeoSketch new axesOn scale: 500. r := canvas float: 2 at: 0 @ -0.1 from: 0 to: 4 name: 'r' showValue: true. f := [ :x | r value * x * (1 - x) ]. canvas ray: 0@0 to: 1@1. canvas plot: f from: 0 to: 1. u := canvas pointOnLine: (canvas segment: 0@0 to: 1@0) hide at: 0.2. 100 timesRepeat: [ | v | v := canvas " v sequence term " point: [ :previous | previous point x @ (f value: previous point x) ] parent: u. canvas segment: u to: v. u := canvas " u is a point on the Ray (0,0) (1,1) " point: [:previous | previous point y @ previous point y ] parent: v. v hide. u hide. canvas segment: u to: v. v := u]

該模型允許表示包含任意數量事件的時間軸。每個事件包括日期和描述。對於事 件非常分散的時間軸，可以使用 shrink 訊息進行壓縮。 Timeline title: 'Five Defining Moments of Alexander' :: addEvent: 'Tutelage by Aristotle. At age 13, he began three years of study under the most famous philosopher of the time.' on: '-343.1.1'; addEvent: 'Accession to the Throne. His father, Philip II, was assassinated, making Alexander King of Macedon at age 20.' on: '-336.10.1'; addEvent: 'Cutting the Gordian Knot. He symbolically became the destined ruler of Asia by violently "untying" the legendary knot.' on: '-333.5.1'; addEvent: 'Victory at Gaugamela. His decisive military triumph over Darius III, effectively ending the Achaemenid Persian Empire.' on: '-331.10.1'; addEvent: 'Death in Babylon. His sudden death at age 32, leaving no clear heir and causing his vast empire to fragment.' on: '-323.6.11'; width: 2; color: Color yellow darker

該模型允許定義一個矩形外殼以及任意數量的壁面和氬原子。該模型模擬了透過 漫反射與壁面相互作用的理想氣體，或者同時具有壁面相互作用和 Lennard-Jones 原子間勢能的真實氣體。 在模擬過程中，包括外殼在內的所有壁面的溫度設定值都可以透過滑鼠進行調節。 此外還提供任意數量的覆蓋矩形區域的溫度探頭。 GasSimulation new fenceOrigin: 0@0 corner: 300@200; addWallFrom: 100@0 to: 80@85; addWallFrom: 100@200 to: 80@105; addMolecules: 50