diff --git a/01_ENV/build-c.sh b/01_ENV/build-c.sh
index 48e6475..57fe08e 100755
--- a/01_ENV/build-c.sh
+++ b/01_ENV/build-c.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 bash clean.sh
-clang-6.0 -c func1.c main.c -lm
-clang-6.0 -s func1.o main.o -lm
+clang-6.0 -c func1.c main.c
+clang-6.0 -s func1.o main.o -lm
\ No newline at end of file
diff --git a/01_ENV/func1.c b/01_ENV/func1.c
index 0dc0564..fbdbe93 100644
--- a/01_ENV/func1.c
+++ b/01_ENV/func1.c
@@ -8,12 +8,12 @@ int func3(int x) {
 }
 
 int func2(int x) {
-    return x - 10;
+    return pow(x, 4) - 5 * pow(x, 3) + pow(x, 2) + 5;
 }
 
 int recurse1(int count) {
     if(count >= 0) {
-         printf("Recurse 1: %d\n", func3(count - 1));
+         printf("Recurse 1: %d", func3(count - 1));
          return recurse1(count - 1);
     }else return 0;
 }
@@ -21,7 +21,7 @@ int recurse1(int count) {
 
 int recurse2(int count) {
     if(count >= 0) {
-         printf("Recurse 2: %d\n", func3(count - 1));
+         printf("Recurse 2: %d", func3(count - 1));
          return recurse1(count - 1);
     }else return 0;
 }
\ No newline at end of file
diff --git a/01_ENV/main.c b/01_ENV/main.c
index 83dca98..361f0dc 100644
--- a/01_ENV/main.c
+++ b/01_ENV/main.c
@@ -24,19 +24,18 @@ int main(int argc, char **argv) {
   for(int i = 0; i <= 5; ++i) {
       tmp += func3(i);
   }
-  
+
     printf("For: %d\n", tmp);
-  
+
   tmp = 0;
   int j = 0;
   while(j <= 5) {
       tmp += func3(j);
       ++j;
   }
-  
+
   printf("While: %d\n", tmp);
-  
-  
+
   tmp = 0;
   int zeroes = 0;
   for(int i = 0; i <= 5; ++i) {
@@ -47,8 +46,8 @@ int main(int argc, char **argv) {
   printf("Nullstellen: %d\n", zeroes);
   
   
-  //recurse1(20);
-  //recurse2(20);
+  recurse1(20);
+  recurse2(20);
   
   local = sum(global, local);
   return local;