python Programming Glossary: multiplying
Python floating point arbitrary precision available? http://stackoverflow.com/questions/11522933/python-floating-point-arbitrary-precision-available It seems to drop extra precision after multiplying by 10 5 . a 9999999998 sqrt a 99999.99999 a floor sqrt a 10..
How can I profile a SQLAlchemy powered application? http://stackoverflow.com/questions/1171166/how-can-i-profile-a-sqlalchemy-powered-application multiple tables can be loaded in one result set instead of multiplying numbers of queries as more depth is added i.e. r r r2 r r2 r3..
Handling big numbers in code http://stackoverflow.com/questions/1386604/handling-big-numbers-in-code x ' 'y x' 100 loops best of 3 8.4 msec per loop As you see multiplying two huge numbers in native Python code can be almost 1000 times..
How to set up and solve simultaneous equations in python http://stackoverflow.com/questions/14367331/how-to-set-up-and-solve-simultaneous-equations-in-python given eqs. the row eq. has been derived As Jaime suggested multiplying by n improves the code. This is not reflected in the spreadsheet..
Differential Operator usable in Matrix form, in Python module Sympy http://stackoverflow.com/questions/15463412/differential-operator-usable-in-matrix-form-in-python-module-sympy alone solves when the matrix of differential operators is multiplying on the left. Here diff is executed only when the function to.. To workaround when the matrix of differential operators is multiplying on the right the __mul__ method in the core class Expr had to.. is to override the __mul__ method of Expr instead of just multiplying the expression trees it will check if the left expression tree..
Why python doesn't have a sign() function? http://stackoverflow.com/questions/1986152/why-python-doesnt-have-a-sign-function when you want the sign of something you just end up multiplying it with another value. And of course that's basically what copysign..
Fastest Way to generate 1,000,000+ random numbers in python http://stackoverflow.com/questions/2709818/fastest-way-to-generate-1-000-000-random-numbers-in-python a list of 7 numbers with random values from 0 1 then multiplying by X1..X7 A Set of 13 numbers that all add up to 1 Currently.. described generating a bunch of random numbers and multiplying and dividing accordingly ... Also you probably already know..
Checking whether a variable is an integer or not http://stackoverflow.com/questions/3501382/checking-whether-a-variable-is-an-integer-or-not exactly what properties your object should have adding multiplying doubling by making it inherit from a specially constructed class...
In Python small floats tending to zero http://stackoverflow.com/questions/3704570/in-python-small-floats-tending-to-zero portion of the number 320 and if it goes to low multiplying the value by 1e20 or some value like thath. But maybe there.. express all that in terms of logarithms . So rather than multiplying probabilities you sum their logarithms. You might want to look..
What are the differences between numpy arrays and matrices? Which one should I use? http://stackoverflow.com/questions/4151128/what-are-the-differences-between-numpy-arrays-and-matrices-which-one-should-i-u a and b are numpy arrays then a b is the array formed by multiplying the components element wise c np.array 4 3 2 1 d np.array 1..
Slicing of a numpy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m) http://stackoverflow.com/questions/4257394/slicing-of-a-numpy-2d-array-or-how-do-i-extract-an-mxm-submatrix-from-an-nxn-ar This is done by calculating in effect i x.shape 1 j and multiplying with the size of an int to get an actual memory offset . If..
Fitting data to distributions? http://stackoverflow.com/questions/4290081/fitting-data-to-distributions Estimating the joint probability of your data involves multiplying probabilities which are all less than 1. Even for a small set.. adding the log probabilities of your data is equivalent to multiplying the probabilities. The likelihood is maximized as the log likelihood..
Multiplying polynomials in python http://stackoverflow.com/questions/5413158/multiplying-polynomials-in-python and the subtracting but I am having a really hard time multiplying to polynomials in python. For example if I have 2X^2 5X 1 1..
How to translate this Math Formula in Haskell or Python? (Was translated in PHP) http://stackoverflow.com/questions/8605183/how-to-translate-this-math-formula-in-haskell-or-python-was-translated-in-php by a single number a scalar matrixmultiply simply involves multiplying each element of the matrix by that number. share improve this..
Is there an equivalent to the MATLAB function bsxfun in python? http://stackoverflow.com/questions/8946810/is-there-an-equivalent-to-the-matlab-function-bsxfun-in-python a function or with some kind of diagonal matrix before multiplying or dividing to save on memory and time. If there's an equivalent..
Multiplying a huge number times random() (Python) http://stackoverflow.com/questions/12161988/multiplying-a-huge-number-times-random-python a huge number times random Python Problem Generate large binary..
Multiplying elements in a sparse array with rows in matrix http://stackoverflow.com/questions/12237954/multiplying-elements-in-a-sparse-array-with-rows-in-matrix elements in a sparse array with rows in matrix If you have..
TypeError: cannot concatenate 'str' and 'int' objects Can someone please help a newbie with their code? http://stackoverflow.com/questions/14532984/typeerror-cannot-concatenate-str-and-int-objects-can-someone-please-help-a to add a string to and integer which raised the error . Multiplying a string by an integer is perfectly valid as it simply repeats..
Python linked list O(1) insert/remove http://stackoverflow.com/questions/2154946/python-linked-list-o1-insert-remove large slices of large lists O log n log k vs. O n k Multiplying a list to make a large sparse list O log k vs. O kn Note that..
Numpy: Multiplying a matrix with a 3d tensor — Suggestion http://stackoverflow.com/questions/4490961/numpy-multiplying-a-matrix-with-a-3d-tensor-suggestion Multiplying a matrix with a 3d tensor &mdash Suggestion I have a matrix..
Multiplying polynomials in python http://stackoverflow.com/questions/5413158/multiplying-polynomials-in-python polynomials in python I did the adding and the subtracting..
How to translate this Math Formula in Haskell or Python? (Was translated in PHP) http://stackoverflow.com/questions/8605183/how-to-translate-this-math-formula-in-haskell-or-python-was-translated-in-php matrix to the corresponding elements of the other matrix. Multiplying a matrix by a single number a scalar matrixmultiply simply involves..
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