John L.

05/24/19

Create a dictionary with list comprehension in Python?

I like the Python list comprehension syntax.Can it be used to create dictionaries too? For example, by iterating over pairs of keys and values: mydict = {(k,v) for (k,v) in blah blah blah} #... more

Follows • 1

Answers •1

Python String Comparison Operators

05/22/19

Most elegant way to check if the string is empty in Python?

Does Python have something like an empty string variable where you can do: if myString == string.empty:Regardless, what's the most elegant way to check for empty string values? I find hard... more

Follows • 1

Answers •1

Python Pandas Dataframe

05/19/19

Adding new column to existing DataFrame in Python pandas?

I have the following indexed DataFrame with named columns and rows not- continuous numbers: a b c d 2 0.671399 0.101208 -0.181532 0.241273 3 0.446172... more

Follows • 1

Answers •1

Precalculus

01/26/17

Find her distance x from the pole. (Round your answer to one decimal place.)

A woman standing on a hill sees a flagpole that she knows is 70 ft tall. The angle of depression to the bottom of the pole is 14°, and the angle of elevation to the top of the pole is 18°.

Follows • 2

Answers •1

Algebra Word Problem

02/04/13