ɱѧϰ(3)

ʲʣӪЧʱʣ

1Ӫҵ

Ӫҵڵļ㹫ʽΪӪҵ=ת+Ӧ˿ת

һ£Ӫҵڶ̣˵ʽתٶȿ죻Ӫҵڳ˵ʽתٶӪҵʵĹϵʸߵ͵ҪǴתӦ˿ת

2ת

ʲУռıؽϴ󡣴ԣֱӰҵʣ˱رӶԴķԣһôתٶָӳתʻת㹫ʽΪ

ת=ɱƽ

ת=360´ת=360(ɱƽ)=(ƽ360)ɱ

ʽеɱƽʲծеġڳ롰ĩƽ

һתٶԽ죬ռˮƽԽͣԽǿתΪֽӦ˿ٶԽ죬ߴתʿҵıתٶԽԽת(ת)ָĺûӳˮƽӰҵĶڳծҲҵҪݡҵߺⲿʹߣ˷ءı仯⣬ӦԴĽṹԼӰתٶȵҪĿзֱԭתʡڲƷתʻijִתʡ㹫ʽΪ

ԭת=ԭϳɱƽԭϴ

ڲƷת=ɱƽڲƷ

3Ӧ˿ת

ʱջӦ˿ǿҵĶڳծҲܷӳҵӦ˿Чʡ

ӳӦ˿תٶȵָӦ˿תʣʱʾתٶӦ˿תҲƽӦ˿ڻƽڣ㹫ʽΪ

Ӧ˿ת=ƽӦ˿

Ӧ˿ת=360Ӧ˿ת=(ƽӦ˿360)

ʽеġ롱ָ۳ۿۺú۾ƽӦ˿ָδ۳׼Ӧ˿ëʲծСӦ˿롰ĩӦ˿ƽ

һ˵Ӧ˿תԽߡƽԽ̣˵Ӧ˿ջԽ졣ҵӪʽشӦ˿ϣӰʽת

4ʲת

ʲתȫʲƽıֵ㹫ʽΪ:

ʲת=ƽʲ

Уƽʲ=(ʲ+ĩʲ)2

ʲתʷӳʲתٶȡתٶȿ죬ԽԼʲʲͶ룬ǿҵӯӻתٶȣҪʲμתγʽ˷ѣҵӯ

5ʲת

ʲתʵļ㹫ʽΪ

ʲת=ƽʲܶ

Уƽʲܶ=(ʲܶ+ĩʲܶ)2

ָ귴ӳʲܶתٶȣתԽ죬ӳԽǿҵͨİ취ʲתԶӡ