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抛物线作图仪

InventionActive
3Claims · 3 independent
§ Ⅰ

Dossier Overview

Applicant

陆友生

Original name record: 陆友生 · View all patentsPatent applicant records

Inventor

陆友生

IPC Classification

B43L 11/02 (2006.01)G09B 19/00 (2006.01)

1.抛物线作图仪的发明，具有新颖性、创造性和实用性于一体，实用于初高中数学和物理的教学活动。2.用抛物线作图仪作抛物线只需一笔就可划成，生动形象地展现了抛物线上动点的规迹。比描点法作图，线条光滑、美观。3.设计原理：抛物线上点到其焦点的距离与到其准线的距离相等，这一特性是抛物线作图仪设计的基础。4.先画抛物线，后建立直角坐标系，这种作图方法比传统的先确定直角坐标系，再作抛物线，方法新颖、技术巧妙，简便易行。

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