Release Version 2.7.0

• added bartlett, https://numpy.org/doc/stable/reference/generated/numpy.bartlett.html
• added blackman, https://numpy.org/doc/stable/reference/generated/numpy.blackman.html
• added corrcoef, https://numpy.org/doc/stable/reference/generated/numpy.corrcoef.html
• added cov, https://numpy.org/doc/stable/reference/generated/numpy.cov.html
• added cov_inv, the inverse covariance matrix, aka the concentration matrix
• added extract, https://numpy.org/doc/stable/reference/generated/numpy.extract.html
• added geomspace, https://numpy.org/doc/stable/reference/generated/numpy.geomspace.html
• added hamming, https://numpy.org/doc/stable/reference/generated/numpy.hamming.html
• added hanning, https://numpy.org/doc/stable/reference/generated/numpy.hanning.html
• added inner, https://numpy.org/doc/stable/reference/generated/numpy.inner.html
• added isneginf, https://numpy.org/doc/stable/reference/generated/numpy.isneginf.html
• added isposinf, https://numpy.org/doc/stable/reference/generated/numpy.isposinf.html
• added kaiser, https://numpy.org/doc/stable/reference/generated/numpy.kaiser.html
• added logb, logarithm of with an arbitrary base b
• added logspace, https://numpy.org/doc/stable/reference/generated/numpy.logspace.html
• added nth_root, the nth root of a value
• added place, https://numpy.org/doc/stable/reference/generated/numpy.place.html
• added select function, https://numpy.org/doc/stable/reference/generated/numpy.select.html
• fmod and the modulus % operator now work with float dtypes
• added Hamming EDAC (Error Dectection and Correction) encode and decode functions, https://en.wikipedia.org/wiki/Hamming_code
• various minor performance improvements and bug fixes