vb求∏的近似值.直到最后一项绝对值小于0.0001为止.公式：∏/4≈1-1/3+1/5-1/7+.程序中问号怎么填dim s as integer,n as integerdim t as single,pi as singles=1:t=1:n=1:pi=?do whlie asb(t) >0.0001pi=pi+?n=n+2s=-st=s/nloopprint
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vb求∏的近似值.直到最后一项绝对值小于0.0001为止.公式：∏/4≈1-1/3+1/5-1/7+.程序中问号怎么填dim s as integer,n as integerdim t as single,pi as singles=1:t=1:n=1:pi=?do whlie asb(t) >0.0001pi=pi+?n=n+2s=-st=s/nloopprint
vb求∏的近似值.直到最后一项绝对值小于0.0001为止.公式：∏/4≈1-1/3+1/5-1/7+.程序中问号怎么填
dim s as integer,n as integer
dim t as single,pi as single
s=1:t=1:n=1:pi=?
do whlie asb(t) >0.0001
pi=pi+?
n=n+2
s=-s
t=s/n
loop
print pi*?
vb求∏的近似值.直到最后一项绝对值小于0.0001为止.公式：∏/4≈1-1/3+1/5-1/7+.程序中问号怎么填dim s as integer,n as integerdim t as single,pi as singles=1:t=1:n=1:pi=?do whlie asb(t) >0.0001pi=pi+?n=n+2s=-st=s/nloopprint
Dim s As Integer,n As integer
Dim t As single,pi As single
s = 1:t = 1:n = 1:pi = 0
Do While Abs(t) > 0.0001
pi = pi + t
n = n + 2
s = -s
t = s / n
Loop
Print pi * 4
Private Sub Command1_Click()
Dim pi As Double, i As Integer, x As Long
x = 1
i = 1
pi = 0
While 1 / x > 10 ^ -6
pi = pi + i * (1 / x)
i = -1 * i
x = x + 2
Wend
Print pi * 4
End Sub