On 9/16/18 8:51 PM, Brandon Allbery wrote:
You're assuming "Real" means "a float of some kind". It's not; it defines all the operations in common over non-Complex numbers (Int, Rat, Num, etc.). What you are looking for, Perl 6 calls Num.
https://docs.perl6.org/type.html: Real role Non-complex number https://en.wikipedia.org/wiki/Real_number In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line. The adjective real in this context was introduced in the 17th century by René Descartes, who distinguished between real and imaginary roots of polynomials. The real numbers include all the rational numbers, such as the integer −5 and the fraction 4/3, and all the irrational numbers, such as √2 (1.41421356..., the square root of 2, an irrational algebraic number). Included within the irrationals are the transcendental numbers, such as π (3.14159265...). In addition to measuring distance, real numbers can be used to measure quantities such as time, mass, energy, velocity, and many more. So Rat is a subset of Real. And if I want something specific, I have to call out a "class", not a "Role". A "Role" is a superset of "classes". And I will get the proper class picked out of the subsets when I assign something to the variable. I will only throw an error is I asn something that is not in tne subsets. Rat class Rational number (limited-precision) Okay, class dismissed. Thank you. You guys have been very patient with me. -T
