diff options
Diffstat (limited to 'src/cmd/eqn/sqrt.c')
| -rw-r--r-- | src/cmd/eqn/sqrt.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/cmd/eqn/sqrt.c b/src/cmd/eqn/sqrt.c new file mode 100644 index 00000000..391d924e --- /dev/null +++ b/src/cmd/eqn/sqrt.c @@ -0,0 +1,35 @@ +#include "e.h" + +void sqrt(int p2) +{ + static int af = 0; + int nps; /* point size for radical */ + double radscale = 0.95; + + if (ttype == DEVPOST) + radscale = 1.05; + nps = ps * radscale * eht[p2] / EM(1.0,ps) + 0.99; /* kludgy */ + nps = max(EFFPS(nps), ps); + yyval = p2; + if (ttype == DEVCAT || ttype == DEVAPS) + eht[yyval] = EM(1.2, nps); + else if (ttype == DEVPOST) + eht[yyval] = EM(1.15, nps); + else /* DEV202, DEVPOST */ + eht[yyval] = EM(1.15, nps); + dprintf(".\tS%d <- sqrt S%d;b=%g, h=%g, nps=%d\n", + yyval, p2, ebase[yyval], eht[yyval], nps); + printf(".as %d \\|\n", yyval); + nrwid(p2, ps, p2); + if (af++ == 0) + printf(".af 10 01\n"); /* make it two digits when it prints */ + printf(".nr 10 %.3fu*\\n(.su/10\n", 9.2*eht[p2]); /* this nonsense */ + /* guesses point size corresponding to height of stuff */ + printf(".ds %d \\v'%gm'\\s(\\n(10", yyval, REL(ebase[p2],ps)); + if (ttype == DEVCAT || ttype == DEVAPS) + printf("\\v'-.2m'\\(sr\\l'\\n(%du\\(rn'\\v'.2m'", p2); + else /* DEV202, DEVPOST so far */ + printf("\\(sr\\l'\\n(%du\\(rn'", p2); + printf("\\s0\\v'%gm'\\h'-\\n(%du'\\^\\*(%d\n", REL(-ebase[p2],ps), p2, p2); + lfont[yyval] = rfont[yyval] = ROM; +} |