mars.tensor.special.gammaincinv¶
- mars.tensor.special.gammaincinv(a, b, **kwargs)[源代码]¶
Inverse to the lower incomplete gamma function with respect to x.
Given an input \(y\) between 0 and 1, returns \(x\) such that \(y = P(a, x)\). Here \(P\) is the regularized lower incomplete gamma function; see gammainc. This is well-defined because the lower incomplete gamma function is monotonic as can be seen from its definition in [dlmf].
- 参数
a (array_like) – Positive parameter
y (array_like) – Parameter between 0 and 1, inclusive
- 返回
Values of the inverse of the lower incomplete gamma function
- 返回类型
scalar or ndarray
参见
gammainc
regularized lower incomplete gamma function
gammaincc
regularized upper incomplete gamma function
gammainccinv
inverse of the regualizred upper incomplete gamma function with respect to x
引用
- dlmf
NIST Digital Library of Mathematical Functions https://dlmf.nist.gov/8.2#E4