diff options
Diffstat (limited to 'metapost')
| -rw-r--r-- | metapost/context/base/mp-tool.mpiv | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/metapost/context/base/mp-tool.mpiv b/metapost/context/base/mp-tool.mpiv index 672a051c2..53e163e07 100644 --- a/metapost/context/base/mp-tool.mpiv +++ b/metapost/context/base/mp-tool.mpiv @@ -289,10 +289,14 @@ vardef set_outer_boundingbox text q = % obsolete setbounds q to outerboundingbox q; enddef; -%D Some missing functions can be implemented rather -%D straightforward: +%D Some missing functions can be implemented rather straightforward (thanks to +%D Taco and others): -numeric Pi ; Pi := 3.1415926 ; +pi := 3.14159265358979323846 ; radian := 180/pi ; % 2pi*radian = 360 ; + +% let +++ = ++ ; + +numeric Pi ; Pi := pi ; % for some old compatibility reasons i guess vardef sqr primary x = x*x enddef ; vardef log primary x = if x=0: 0 else: mlog(x)/mlog(10) fi enddef ; @@ -302,15 +306,6 @@ vardef inv primary x = if x=0: 0 else: x**-1 fi enddef ; vardef pow (expr x,p) = x**p enddef ; -vardef asin primary x = x+(x**3)/6+3(x**5)/40 enddef ; -vardef acos primary x = asin(-x) enddef ; -vardef atan primary x = x-(x**3)/3+(x**5)/5-(x**7)/7 enddef ; -vardef tand primary x = sind(x)/cosd(x) enddef ; - -%D Here are Taco Hoekwater's alternatives (but vardef'd and primaried). - -pi := 3.1415926 ; radian := 180/pi ; % 2pi*radian = 360 ; - vardef tand primary x = sind(x)/cosd(x) enddef ; vardef cotd primary x = cosd(x)/sind(x) enddef ; @@ -321,9 +316,11 @@ vardef cot primary x = cos(x)/sin(x) enddef ; vardef asin primary x = angle((1+-+x,x)) enddef ; vardef acos primary x = angle((x,1+-+x)) enddef ; +vardef atan primary x = angle(1,x) enddef ; vardef invsin primary x = (asin(x))/radian enddef ; vardef invcos primary x = (acos(x))/radian enddef ; +vardef invtan primary x = (atan(x))/radian enddef ; vardef acosh primary x = ln(x+(x+-+1)) enddef ; vardef asinh primary x = ln(x+(x++1)) enddef ; |