Incorrect definition of floor function for the type-cast to int example

[krishnakumarg1984]

In the lesson in part 2, https://programming-24.mooc.fi/part-2/1-programming-terminology, it says:

temperature = float(input("Please type in a temperature: "))
print("The temperature is", temperature)
print("...and rounded down it is", int(temperature))

with the output block

Please type in a temperature: 5.15
The temperature is 5.15
...and rounded down it is 5

the text incorrectly says:

Notice the function always rounds down, and not according to the rounding rules in mathematics. This is an example of a floor function.

However, this is not the mathematical floor function. For a negative number such as -4.1, it produces -4, instead of -5, which is the true output from the mathematical floor function.

The python int() function merely does truncation, and not flooring. See this stackoverflow page for reference and an example.