darkhistory.utilities

Non-physics convenience and mathematical functions.

Functions

arrays_close(ndarray_list[, rtol, atol])	Checks if a list of arrays are all np.allclose.
arrays_equal(ndarray_list)	Checks if a list of arrays are all equal.
bernoulli(k)	The kth Bernoulli number.
check_err(val, err, epsrel)	Checks the relative error given a tolerance.
compare_arr(ndarray_list)	Prints the arrays in a suitable format for comparison.
dict_from_inhom_list(l, key)	Get hdf5 compatible dictionary from an inhomogeneous list of arrays.
exp_expn(n, x)	Returns \(e^x E_n(x)\).
get_grid(a, b)	Returns a 2D grid of coordinates from 2 1D arrays.
hyp2f1_func_real(n, x)	Returns the real part of \(_2F_1(1, n+1, n+2, x)\).
inhom_list_from_dict(d, key)	Get inhomogeneous list of arrays from dictionary.
is_log_spaced(arr)	Checks for a log-spaced array.
log_1_plus_x(x)	Computes log(1+x) with greater floating point accuracy.
log_series_diff(b, a)	The Taylor series for log(1+b) - log(1+a).
spence_series_diff(b, a)	Returns the Taylor series for Li2(b) - Li2(a).

Classes

Interpolator2D(arr0, name0, arr1, name1, val_arr)

Interpolation function over a list of objects.