T tyuanonline Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #1 在Delphi中有没有求三角函数的Sin、Cos、Tan,并且如何使用?
L lcl_003 Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #2 有 series1.AddXY(i,a*Sin(i/8-1.2)+b); i:=i+1.2;
春 春意 Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #3 sin: var R: Extended; S: string; begin R := Sin(Pi); Str(R:5:3, S); Canvas.TextOut(10, 10, 'The Sin of Pi is ' + S); end; 其它两个自己去查帮助…………(我查过,都有的!)
sin: var R: Extended; S: string; begin R := Sin(Pi); Str(R:5:3, S); Canvas.TextOut(10, 10, 'The Sin of Pi is ' + S); end; 其它两个自己去查帮助…………(我查过,都有的!)
T tyuanonline Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #4 请教lcl_003,为什么t:=Sin(30)的数字不对?
T tseug Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #5 uses Math; function DegToRad(const Degrees: Extended): Extended; { Radians := Degrees * PI / 180}
X xianguo Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #6 cos 余弦函数 sin 正弦函数 arctan 函数 余切函数
Z zhousi Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #8 没有delphi就不要混了,以前pascal里都有 在math。pas里
C cdyxl Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #9 Sin returns the sine of the angle X in radians. 你的30是什么?在SIN里是弧度啊!
L lcl_003 Unregistered / Unconfirmed GUEST, unregistred user! 2002-11-28 #10 t:=sin(30); 30应该是角度,pascal里是弧度,要进行转换