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python Programming Glossary: inversionpython tilde unary operator as negation numpy bool array http://stackoverflow.com/questions/13600988/python-tilde-unary-operator-as-negation-numpy-bool-array The ~ operator in python is a documented as a bitwise inversion operator. Fine. I have noticed seemingly schizophrenic behavior..
“Large data” work flows using pandas http://stackoverflow.com/questions/14262433/large-data-work-flows-using-pandas wrapping this # as you will want to have this map and its inversion group_map dict A dict fields 'field_1' 'field_2'..... dc 'field_1'....'field_5'..
calling dot products and linear algebra operations in Cython? http://stackoverflow.com/questions/16114100/calling-dot-products-and-linear-algebra-operations-in-cython in Cython I'm trying to use dot products matrix inversion and other basic linear algebra operations that are available.. in numpy from Cython. Functions like numpy.linalg.inv inversion numpy.dot dot product X.t transpose of matrix array . There's.. functions I'd like to call dot product np.dot matrix inversion np.linalg.inv matrix multiplication taking transpose equivalent..
Solving non-linear equations in python http://stackoverflow.com/questions/19542801/solving-non-linear-equations-in-python e X_i f Y_i g Z_i . It's easy to do a least squares linear inversion for d e f and g . We can then get a b and c from a sqrt d b.. to the bottom. Caveat Picking the right non linear inversion method initial guess and tuning the parameters of the method..
Why is IoC / DI not common in Python? http://stackoverflow.com/questions/2461702/why-is-ioc-di-not-common-in-python in Python. python design patterns dependency injection inversion of control architecture share improve this question I don't..
fitting exponential decay with no initial guessing http://stackoverflow.com/questions/3938042/fitting-exponential-decay-with-no-initial-guessing a non linear method has one huge advantage over a linear inversion It can solve a non linear system of equations. In your case..
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