From 3cff2acc8eec95183fe4cd3dcc3a3bf30b37ce66 Mon Sep 17 00:00:00 2001
From: Julian Weigt <juw@posteo.de>
Date: Sun, 28 Dec 2025 15:40:34 +0000
Subject: Add root_to_string function to enable printing of roots.

---
 ratio.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'ratio.c')

diff --git a/ratio.c b/ratio.c
index 07a28ce..3b38ea7 100644
--- a/ratio.c
+++ b/ratio.c
@@ -127,8 +127,14 @@ double to_double(rational r){
 	return i*((double)r.n)/((double)r.d);
 }
 
-bool to_string(char* s,rational r){
+bool to_string(char* s, rational r){
 	double f = to_double(r);
 	sprintf(s,"%llu / %llu = %f +/- %6.1e",r.n,r.d,f,f*DBL_EPSILON);
 	return true;
 }
+
+bool root_to_string(char* s, rational r, unsigned int p){
+	double f = pow(to_double(r),1.0/p);
+	sprintf(s,"(%llu / %llu)^1/%i = %f +/- %6.1e",r.n,r.d,p,f,2*DBL_EPSILON*f);
+	return true;
+}
-- 
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