shithub: riscv

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fplot: compute y range correctly when used with multiple graphs

--- a/sys/src/cmd/fplot.c

+++ b/sys/src/cmd/fplot.c

@@ -410,8 +410,6 @@

 {

 	int x;

-	gymin = Inf(1);

-	gymax = Inf(-1);

 	for(x = r->min.x; x < r->max.x; x++)

 		drawinter(co, r, convx(r, x), convx(r, x + 1), 0);

 }

@@ -567,6 +565,8 @@

 	int i;

 	color = display->black;

+	gymin = Inf(1);

+	gymax = Inf(-1);

 	for(i = 0; i < nfns; i++)

 		drawgraph(&fns[i], &screen->r);

 	if(!aflag)