diff --git a/Makefile b/Makefile
index c1b62e4270344182e51a344c8146d0610d0cec7d..342a832b7163c6176590a996448e8df32db521ba 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ SRCS := test.c fx_s1615_double.c fx_1615_longlong.c
 OBJS := $(SRCS:.c=.o)
 CC := gcc	# pre-defined macro can be redefined!
 #CFLAGS = -c -Wall -g
-CFLAGS = -c -DTEST -Wall
+CFLAGS = -Wall
 
 test : $(OBJS)
 	$(CC) -o $@ $^ -lm
diff --git a/images/DIVISION_TIME_TEST.png b/images/DIVISION_TIME_TEST.png
new file mode 100644
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Binary files /dev/null and b/images/DIVISION_TIME_TEST.png differ
diff --git a/images/MULTIPLE_TIME_TEST.png b/images/MULTIPLE_TIME_TEST.png
new file mode 100644
index 0000000000000000000000000000000000000000..47111d66a98be4e5a2e18e75dac7e2b4fe3cc2a0
Binary files /dev/null and b/images/MULTIPLE_TIME_TEST.png differ