请你帮我用我的代码纠正这个错误好吗。当我打印最后一行时,我得到一个语法错误消息:
import math
m_ = 900 # identifier for normal distribution mean [mm]
s_d = 1 # identifier for normal distribution standard deviation [mm]
print "DISTRIBUTION OF A PLATE WIDTH:" " MEAN", "=",m_,"," "STD DEV", "=", s_d
print ""
print "Using functions from the math library ..."
# The probability density function(pdf) for a normal distribution with mean m_ and
standard deviation s_d
ftotal = 0
term = 0.0
count = 0
while abs(term) > 911:
ftotal += term
count += 1
term = term * xx / float(count)
print "x" " " " f(x)" " " " F(x)"
print "890" "" (1 / ((s_d * (2 * math.pi) ** -0.5)) * math.exp((- (x - m_) ** 2) / (2 * (s_d) ** 2), 0.5 * (1 + math.erf((x - m_) / s_d * m.sqrt(2))
在while循环之前定义x。最后两行用890表示x,所以我猜
x = 890
。你知道吗我记不清确切的公式,但如果上面的表达式放对了,就不会有语法错误。你知道吗
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