X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=check%2Fexam_inifcns_nstdsums.cpp;h=ec843da3ab5544ea8b9eda8c0f4c3a8a19d0a541;hp=247fa80d8ebb2edd12b6ac442c1047fe800f7237;hb=4f596b14ac1cdb03163c74e210cab493358ababf;hpb=83a7ee99a947cbbf331018b803ad6be43a9ccd45

diff --git a/check/exam_inifcns_nstdsums.cpp b/check/exam_inifcns_nstdsums.cpp
index 247fa80d..ec843da3 100644
--- a/check/exam_inifcns_nstdsums.cpp
+++ b/check/exam_inifcns_nstdsums.cpp
@@ -290,6 +290,81 @@ static unsigned inifcns_test_LiG()
 }
 
 
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//  legacy exam - checking for historical bugs
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+
+static unsigned inifcns_test_legacy()
+{
+	Digits = 17;
+	ex prec = 5 * pow(10, -(int)Digits);
+
+	unsigned result = 0;
+
+	ex r1 = zeta(lst(1,1,1,1,1,1),lst(-1,-1,-1,1,1,1));
+	if ((r1.evalf() - numeric("-0.0012588769028204890704")) > prec) {
+		clog << "zeta({1,1,1,1,1,1},{-1,-1,-1,1,1,1}) seems to be wrong." << endl;
+		result++;
+	}
+
+	ex x1 = exp(2*Pi*I/13).evalf();
+	ex x2 = exp(24*Pi*I/13).evalf();
+  	ex r2 = Li(lst(2),lst(x1)).hold().evalf();
+	ex r3 = Li(lst(2),lst(x2)).hold().evalf();
+	if ( abs(r2-conjugate(r3)) > prec ) {
+		clog << "Legacy test 2 seems to be wrong." << endl;
+		result++;
+	}
+
+  	ex x3 = exp(5*Pi*I/3).evalf();
+	ex r4 = Li(lst(3),lst(x3)).hold().evalf();
+	if ( abs(r4 - numeric("0.40068563438653142847-0.95698384815740185713*I")) > prec ) {
+		clog << "Legacy test 3 seems to be wrong." << endl;
+		result++;
+	}
+
+	Digits = 100;
+	prec = 5 * pow(10, -(int)Digits);
+	ex x0 = 1.;
+	   x1 = exp(Pi*I/3).evalf();
+	   x2 = exp(2*Pi*I/3).evalf();
+	   x3 = -1.;
+	ex x4 = exp(4*Pi*I/3).evalf();
+	ex x5 = exp(5*Pi*I/3).evalf();
+
+	ex r5 = Li(lst(1,1,1,1),lst(x2,x4,x3,x0)).hold().evalf();
+	ex r6 = Li(lst(1,1,1,1),lst(x4,x2,x3,x0)).hold().evalf();
+	if ( abs(r5-conjugate(r6)) > prec ) {
+		clog << "Legacy test 4 seems to be wrong." << endl;
+		result++;
+	}
+
+	ex r7 = Li(lst(1,2,1),lst(x3,x2,x4)).hold().evalf()
+		+Li(lst(1,1,2),lst(x3,x2,x4)).hold().evalf()
+		+Li(lst(1,1,1,1),lst(x3,x0,x2,x4)).hold().evalf()
+		+Li(lst(1,1,1,1),lst(x3,x2,x0,x4)).hold().evalf()
+		+Li(lst(1,1,1,1),lst(x3,x2,x4,x0)).hold().evalf()
+		+Li(lst(1,2,1),lst(x2,x1,x0)).hold().evalf()
+		+Li(lst(1,1,2),lst(x2,x3,x4)).hold().evalf()
+		+Li(lst(1,1,1,1),lst(x2,x4,x3,x0)).hold().evalf()
+		+Li(lst(1,1,1,1),lst(x2,x3,x4,x0)).hold().evalf()
+		+Li(lst(1,1,1,1),lst(x2,x3,x0,x4)).hold().evalf()
+		+Li(lst(2,2),lst(x5,x4)).hold().evalf()
+		+Li(lst(2,1,1),lst(x5,x0,x4)).hold().evalf()
+		+Li(lst(2,1,1),lst(x5,x4,x0)).hold().evalf()
+		-Li(lst(1,1),lst(x3,x0)).hold().evalf()*Li(lst(1,1),lst(x2,x4)).hold().evalf();
+	if ( abs(r7) > prec ) {
+		clog << "Legacy test 5 seems to be wrong." << endl;
+		result++;
+	}
+
+	return result;
+}
+
+
 unsigned exam_inifcns_nstdsums(void)
 {
 	unsigned result = 0;
@@ -300,6 +375,7 @@ unsigned exam_inifcns_nstdsums(void)
 	result += inifcns_test_S();
 	result += inifcns_test_HLi();
 	result += inifcns_test_LiG();
+	result += inifcns_test_legacy();
 	
 	return result;
 }