Sorry about the phenomenal bug spam, guys.  Adding xorg-team@ to the QA contact so bugs don't get lost in future.

(In reply to comment #0)
> The following bug has been reported to the Debian BTS 2 months ago by Kevin
> Ryde.
> 
> Brice
> 
> 
> 
> On a tty, the eqn math bits in "man XDrawArc" come out looking like
>     [x+wi2th,y+hei2ht]
> or
>     2n   for normal-angle in the range [32,2n]
> which makes it pretty hard to understand.
> 
> Apparently gnu eqn and/or nroff aren't interested in trying to render
> maths on a tty.  It'd be nice if XDrawArc could have alternative bits
> (".ie n" conditions) that come out better, "[x+width/2,y+height/2]"
> and "[3*pi/2,2*pi]" etc.

Here is the WTF I get in libX11.html#Drawing_Single_and_Multiple_Arcs:

% roman "skewed-angle" ~ = ~ atan left ( tan ( roman "normal-angle" )
 * width over height right ) +^ adjust%

Workaround: { groffer -TX100 XDrawArc; }

Besides, since when do we use full words in mathematical formulas?  It is absurd.  Rather have it medieval-style:

"The tangent of the skewed angle equals the tangent of the normal angle multiplied by the ratio width over height."

"If two arcs join correctly … XDrawArc does not draw a pixel more than once."

What two arcs??

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