              &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
                        NBLMaths Control
                        NBL ѧؼ
                           ʹ˵
              &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&


1ֵ֧Ļ
   ~~~~~~~~~~~~~~~~

[ + ]
[ - ]
[ * ]
[ / ]
[ ^ ]˷
[ - ]
[sin]
[cos]
[tan]
[atn]
[sqr]ƽ
[exp]eָ
[ ln]eĶ
[abs]ֵ
[int]˹
[sgn]ȡţΪ1Ϊ-10Ϊ0
[ > ]
[ >=]ڻ
[ < ]С
[ <=]Сڻ
[ <>]
[ = ]
[not]߼
[and]߼루ң
[ or]߼
[xor]߼

֧֡


2ʽ
   ~~~~~~~~~~


a[ 򵥱ʽ ]
κκϷѧʽ
sinx+2=sin(x)+2

b[ ֧ʽ ]
ʽ
[ʽ1]ʽ1'[ʽ2]ʽ2'...

c[  ]
δңһʽnΪʱرʽn'ֵ

d[  ]
[x>2]x^2[x>0andx<=2]2*x[1]x^3
[1]൱ڱеElse

Ч
[֧ʽ]
If x>2 Then y=x^2
ElseIf x>0andx<=2 Then y=2*x
ElseIf 1 Then y=x^3
End If

3ʽע
   ~~~~~~~~


<1>ʽвֳֵֵ֧ܳκηţ<ո>߼Ҳ֣ܳx>0andx<=2x>0 and x<=2Ǵ
<2>ʡţںȼߣֻܵһλsinx+2=sin(x)+2 =/= sin(x+2)


4Ϣ
   ~~~~~~~~

ʽûʽʱͿʼʱ
Error#nΪnĴnֵ£
   1:ʽңxsinx              <Ӧó˫Ŀĵطַ>
   2:Ųƥ䣬(x+2))             <Ż>
   3:ʽδɻޱʽx+2*x- <ʽ˫Ŀβ>
   4:Ƿַsimx                 <ӦóֵĿֻXĵطַǷַ>
   5:ʱ󣬼3/xʱGetResult(0)
No.n [BooleanBDS Error#a] [MathsBDS Error#b]ʽΪ֧ʽʱĴϢ
   No.n:n֧ṹзִ
   [BooleanBDS Error#a]:߼ʽзִ󣬴Ϊa
   [MathsBDS Error#b]  :ʽзִ󣬴Ϊb
   Ϊ0ʱʾ޴

5ٶȲ
   ~~~~~~~~

ںõĻϣٶȿԴﵽ500KHz԰ĲԽңE-mail me for yanruimail@yahoo.com.cn rickoneգעԭɡ

[2004/09/06] rickone