Category : numeric

I have a DataFrame with two columns. One column contains string values that may or may not include numbers (integer or float). Sample: import pandas as pd import numpy as np data = [(‘A’, ‘>10’), (‘B’, ’10’), (‘C’, ‘<10’), (‘D’, ’10’), (‘E’, ’10-20′), (‘F’, ‘20.0’), (‘G’, ‘25.1’) ] data_df = pd.DataFrame(data, columns = [‘name’, ‘value’]) ..

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I’m a freshie. I would like to convert a numeric string into int from a sublist in Python. But not getting accurate results. 😔 countitem = 0 list_samp = [[‘1′,’2′,’blue’],[‘1′,’66’,’green’],[‘1′,’88’,’purple’]] for list in list_samp: countitem =+1 for element in list: convert_element = int(list_samp[countitem][0]) list_samp[countitem][1] = convert_element Source: Python..

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I am trying to get the following result using (numerical) double integration of the two partial derivatives: def deriv_y(x,y): return -2*x*y*np.exp(-x**2-y**2) and def deriv_x(x,y): return (1-2*x**2)*np.exp(-x**2-y**2) The function is an introductory example suitable for novices. The derivatives and some properties are provided here by Wolfram Alpha. This function is also used by this tutorial "3D ..

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I have the following integral (inspired by this question) involving two real variables a and b (and the imaginary unit I): f = integrate(exp((-a*t**2+I*b*t)/(3*t**2+1)+I*t*x)*(x/(3*t**2+1)), (t, -oo, oo), (x, 0, oo)) I would like to iterate both variables a and b, let us say in the range from -10 to 10, e.g. for a in range(-10,11): ..

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