diff --git a/examples/04_sample_from_cdf_simple/example b/examples/04_sample_from_cdf_simple/example
index a8080e2..9169385 100755
Binary files a/examples/04_sample_from_cdf_simple/example and b/examples/04_sample_from_cdf_simple/example differ
diff --git a/examples/05_sample_from_cdf_beta/example b/examples/05_sample_from_cdf_beta/example
index 0c0a0ca..0c2cc5e 100755
Binary files a/examples/05_sample_from_cdf_beta/example and b/examples/05_sample_from_cdf_beta/example differ
diff --git a/examples/07_ci_beta/example b/examples/07_ci_beta/example
index 6dfa4c9..6b15878 100755
Binary files a/examples/07_ci_beta/example and b/examples/07_ci_beta/example differ
diff --git a/extra.c b/extra.c
index 4d7e412..9ad7e1f 100644
--- a/extra.c
+++ b/extra.c
@@ -31,7 +31,7 @@ int compare_doubles(const void* p, const void* q)
     double x = *(const double*)p;
     double y = *(const double*)q;
 
-    /* Avoid return x - y, which can cause undefined behaviour
+    /* Avoid returning x - y, which can cause undefined behaviour
        because of signed integer overflow. */
     if (x < y)
         return -1; // Return -1 if you want ascending, 1 if you want descending order.
diff --git a/makefile b/makefile
index 29d5889..5d59d8a 100644
--- a/makefile
+++ b/makefile
@@ -4,7 +4,7 @@ MAKEFLAGS += --no-print-directory
 STYLE_BLUEPRINT=webkit
 FORMATTER=clang-format -i -style=$(STYLE_BLUEPRINT)
 
-all:
+build-examples:
 	cd examples/01_one_sample && make && echo
 	cd examples/02_many_samples_time_to_botec && make && echo
 	cd examples/03_gcc_nested_function && make && echo
@@ -12,6 +12,33 @@ all:
 	cd examples/05_sample_from_cdf_beta && make && echo
 	cd examples/06_gamma_beta && make && echo
 	cd examples/07_ci_beta && make && echo
+	cd examples/08_nuclear_war && make && echo 
+	cd examples/09_burn_10kg_fat && make && echo 
+	cd examples/10_nuclear_recovery && make && echo 
+	cd examples/11_algebra && make && echo 
+	cd examples/12_algebra_and_conversion && make && echo 
+	cd examples/13_ergonomic_algebra && make && echo 
+	cd examples/14_twitter_thread_example && make && echo 
+	cd examples/15_plotting-scratchpad && make && echo 
+	cd examples/16_100_lognormal_samples && make && echo 
+
+format-examples:
+	cd examples/01_one_sample && make format && echo
+	cd examples/02_many_samples_time_to_botec && make format && echo
+	cd examples/03_gcc_nested_function && make format && echo
+	cd examples/04_sample_from_cdf_simple && make format && echo
+	cd examples/05_sample_from_cdf_beta && make format && echo
+	cd examples/06_gamma_beta && make format && echo
+	cd examples/07_ci_beta && make format && echo
+	cd examples/08_nuclear_war && make format && echo 
+	cd examples/09_burn_10kg_fat && make format && echo 
+	cd examples/10_nuclear_recovery && make format && echo 
+	cd examples/11_algebra && make format && echo 
+	cd examples/12_algebra_and_conversion && make format && echo 
+	cd examples/13_ergonomic_algebra && make format && echo 
+	cd examples/14_twitter_thread_example && make format && echo 
+	cd examples/15_plotting-scratchpad && make format && echo 
+	cd examples/16_100_lognormal_samples && make format && echo 
 
 format: squiggle.c squiggle.h
 	$(FORMATTER) squiggle.c
@@ -19,3 +46,4 @@ format: squiggle.c squiggle.h
 
 lint:
 	clang-tidy squiggle.c -- -lm
+	clang-tidy extra.c -- -lm