module Num: sig .. end
Abstract numeric values
Numerics are a symbolic representation of numeric values.
In many cases, but not always, an object of type Num.t is intended to be
a length in some unit. In addition, values of type Num.t may actually be
unknown to Mlpost. This is why there is no function that gives back a
float.
type Signature.num
The Mlpost numeric type is an abstract datatype
Conversion functions
val of_float : float -> t
Convert a float into a
Num.t
val bp : float -> t
The base unit in Mlpost is bp.
val pt : float -> t
pt are PostScript points. This is the same unit as the pt unit in TeX
val cm : float -> t
val mm : float -> t
val inch : float -> t
The following are units dependent of the font used
val em : float -> t
the width of an "m"
val ex : float -> t
the height of an "x"
Useful operations on Nums
val addn : t -> t -> t
val subn : t -> t -> t
val multn : t -> t -> t
val multf : float -> t -> t
val divf : t -> float -> t
val neg : t -> t
val divn : t -> t -> t
val maxn : t -> t -> t
val minn : t -> t -> t
val gmean : t -> t -> t
the geometric mean of two nums : sqrt(a * a + b * b)
val if_null : t -> t -> t -> t
if_null n n1 n2 is equal to n1 if n is null, n2 othewise
Infix operators
module Infix: sig .. end
Useful constants and functions
val zero : t
val one : t
val two : t
Shortcuts for bp 0., bp 1. and bp 2..
val pi : float
3 .14159
val deg2rad : float -> float
Converts degrees into radians
type float -> t
module Scale: sig .. end