diff options
Diffstat (limited to 'src/fontloader/misc/fontloader-l-math.lua')
-rw-r--r-- | src/fontloader/misc/fontloader-l-math.lua | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/fontloader/misc/fontloader-l-math.lua b/src/fontloader/misc/fontloader-l-math.lua new file mode 100644 index 0000000..43f60b5 --- /dev/null +++ b/src/fontloader/misc/fontloader-l-math.lua @@ -0,0 +1,34 @@ +if not modules then modules = { } end modules ['l-math'] = { + version = 1.001, + comment = "companion to luat-lib.mkiv", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local floor, sin, cos, tan = math.floor, math.sin, math.cos, math.tan + +if not math.round then + function math.round(x) return floor(x + 0.5) end +end + +if not math.div then + function math.div(n,m) return floor(n/m) end +end + +if not math.mod then + function math.mod(n,m) return n % m end +end + +local pipi = 2*math.pi/360 + +if not math.sind then + function math.sind(d) return sin(d*pipi) end + function math.cosd(d) return cos(d*pipi) end + function math.tand(d) return tan(d*pipi) end +end + +if not math.odd then + function math.odd (n) return n % 2 ~= 0 end + function math.even(n) return n % 2 == 0 end +end |