- The Modern C# Challenge
- Rod Stephens
- 53字
- 2021-08-13 15:24:00
28. Arrowheads
Write a program that lets the user click and drag to define a line segment. Add a tail to the segment's starting point and an arrowhead to its ending point, as shown in the following screenshot:
Hint: If <vx, vy> is a vector, then <vy, -vx> and <-vy, vx> are two vectors perpendicular to the original vector.
推薦閱讀
- 普林斯頓微積分讀本(修訂版)
- 矩陣決策:如何鎖定關(guān)鍵點(diǎn)做出制勝策略
- 奧妙的數(shù)學(xué)問(wèn)答
- 張梅玲:讓孩子受益一生的數(shù)學(xué)思維訓(xùn)練
- 其實(shí)你對(duì)數(shù)學(xué)的誤會(huì)很大(共5冊(cè))
- 一個(gè)數(shù)學(xué)家的辯白(雙語(yǔ)版)
- 救命的數(shù)學(xué)
- 魔方的思維世界
- 硅谷工程師爸爸的超強(qiáng)數(shù)學(xué)思維課:激發(fā)孩子的數(shù)感天賦
- 代數(shù)的歷史:人類對(duì)未知量的不舍追蹤(修訂版)
- 數(shù)學(xué)女孩5:伽羅瓦理論
- 高等數(shù)學(xué)習(xí)題全解與學(xué)習(xí)指導(dǎo)(下冊(cè))
- 計(jì)算進(jìn)化史:改變數(shù)學(xué)的命運(yùn)
- 這才是好讀的數(shù)學(xué)史
- Digital Forensics with Kali Linux