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matlab中的不完全伽马函数gammainc
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kongfeng0824 2013-11-25 16:58
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Y = gammainc(X,A) Y = gammainc(X,A,tail) Y = gammainc(X,A,'scaledlower') Y= gammainc(X,A,'scaledupper')
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个人分类: Matlab Study|652 次阅读|0 个评论
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matlab中的伽马函数gamma
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kongfeng0824 2013-11-25 16:56
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Y = gamma(X) The gamma function interpolates the factorial function.For integer n: gamma(n+1) = n! = prod(1:n)
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个人分类: Matlab Study|1481 次阅读|0 个评论
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matlab中的矩阵开放函数sqrtm
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kongfeng0824 2013-11-25 16:52
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X = sqrtm(A) is the principalsquare root of the matrix A, i.e. X*X= A.
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个人分类: Matlab Study|785 次阅读|0 个评论
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matlab中的平方根函数sqrt
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kongfeng0824 2013-11-25 16:46
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B = sqrt(X) returns thesquare root of each element of the array X. Forthe elements of X that are negative or complex, sqrt(X) producescomplex results.
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个人分类: Matlab Study|545 次阅读|0 个评论
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matlab中的n次方根函数nthroot
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kongfeng0824 2013-11-25 16:45
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y = nthroot(X, n) returnsthe real nth root of the elements of X.Both X and n must be real and n mustbe a scalar. If X has negative entries, n mustbe an odd integer.
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个人分类: Matlab Study|1033 次阅读|0 个评论
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matlab中的乘方函数power
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kongfeng0824 2013-11-25 16:43
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C = power(A,B) is called for the syntax 'A.^ B' when A or B isan object.
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个人分类: Matlab Study|2713 次阅读|0 个评论
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matlab中的连乘函数prod
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kongfeng0824 2013-11-25 16:41
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B = prod(A) B = prod(A,dim) B = prod(___,datatype)
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个人分类: Matlab Study|517 次阅读|0 个评论
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matlab中的累积连乘函数cumprod
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kongfeng0824 2013-11-25 16:40
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B = cumprod(A) B = cumprod(A,dim) A = ; B = cumprod(A) B = 1 2 6 24 120
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个人分类: Matlab Study|1003 次阅读|0 个评论
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matlab中的累积和函数cumsum
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kongfeng0824 2013-11-25 16:36
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B = cumsum(A) B = cumsum(A,dim) B = cumsum(A) B = cumsum(A,dim) B = 1 3 6 10 15
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个人分类: Matlab Study|754 次阅读|0 个评论
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matlab中的前后项差函数diff
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kongfeng0824 2013-11-25 16:32
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Syntax Y = diff(X) Y = diff(X,n) Y = diff(X,n,dim) Examples The quantity diff(y)./diff(x) is an approximatederivative. x = ; y = diff(x) y = 1 1 1 1 z = diff(x,2) z = 0 0 &n ...
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个人分类: Matlab Study|356 次阅读|0 个评论
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