Assertion: function's number | /r/HasProperty | real
Facets:
Source sentences:
text: It has these an inverse, called the exponential function that maps the real numbers onto the positive numbers.
text: For now, functions will take one or more real numbers as an input, and return a numerical output.
text: One can collect a number of functions each of a real variable, say
text: Conway's base-13 function takes in a real number x and considers its base-13 representation as a sequence of symbols {0, 1, ..., 9, +, −, .} .
text: The function’s domain is all real numbers because there is nothing you can put in for x that won’t work.
text: Consider the natural logarithm function mapping the real numbers to themselves.