diff --git a/assets/examples/loops.rhea b/assets/examples/loops.rhea
new file mode 100644
index 0000000..ca2167f
--- /dev/null
+++ b/assets/examples/loops.rhea
@@ -0,0 +1,13 @@
+func main(){
+    var i = 0;
+    loop {
+        match i {
+            10 -> break;
+        }
+        i = i + 1;
+    }
+    loop {}
+}
+
+
+
diff --git a/assets/examples/match.rhea b/assets/examples/match.rhea
new file mode 100644
index 0000000..1062754
--- /dev/null
+++ b/assets/examples/match.rhea
@@ -0,0 +1,9 @@
+var std = import "std";
+var print = std.print;
+
+func main() {
+    match 2 {
+        1 -> { print("One") }
+        2 -> { print("Two") }
+    }
+}
\ No newline at end of file
diff --git a/assets/libraries/math/constants.rhea b/assets/libraries/math/constants.rhea
index 50db5b9..9abab85 100644
--- a/assets/libraries/math/constants.rhea
+++ b/assets/libraries/math/constants.rhea
@@ -3,4 +3,7 @@
 const C = 299_792_458;
 
 const pi = 3.141592653589793;
-const tau = 6.283185307179586;
\ No newline at end of file
+const π = pi;
+
+const tau = 6.283185307179586;
+const 𝜏 = tau;
\ No newline at end of file
diff --git a/assets/libraries/math/math.rhea b/assets/libraries/math/math.rhea
index 8e22b41..e1f25ea 100644
--- a/assets/libraries/math/math.rhea
+++ b/assets/libraries/math/math.rhea
@@ -1 +1,24 @@
-var constants = include "constants";
\ No newline at end of file
+var constants = include "constants";
+
+func square_root(value){
+    match value{
+        0..1 -> return value;
+        value -> {
+            var y = x;
+            var z = (y + (x/y)) / 2;
+            // NOTE: not finalized syntax
+            while abs(y - z) >= 0.00001{
+                y = z
+                z = (y + (x/y)) / 2
+            }
+            return z;
+        }
+    }
+}
+var sqrt = square_root;
+var √ = square_root;
+
+func absolute_value(value){
+
+}
+var abs = absolute_value;
\ No newline at end of file
diff --git a/assets/libraries/std/io.rhea b/assets/libraries/std/io.rhea
index 90f0d10..3dc74b6 100644
--- a/assets/libraries/std/io.rhea
+++ b/assets/libraries/std/io.rhea
@@ -1 +1,6 @@
-var log = include "log";
\ No newline at end of file
+var log = include "log";
+
+func print(value) {
+    // TODO: define an api for output
+}
+
diff --git a/assets/libraries/std/log.rhea b/assets/libraries/std/log.rhea
index 3237ccb..1b6a90b 100644
--- a/assets/libraries/std/log.rhea
+++ b/assets/libraries/std/log.rhea
@@ -1,5 +1,25 @@
-func error(){}
-func warn(){}
-func info(){}
-func debug(){}
-func trace(){}
\ No newline at end of file
+var io = include "io";
+var print = io.print;
+
+// TODO: include time in the log
+
+
+func error(value){
+    print("error " + value)
+}
+
+func warn(value){
+    print("warn " + value)
+}
+
+func info(value){
+    print("info " + value)
+}
+
+func debug(value){
+    print("debug " + value)
+}
+
+func trace(value){
+    print("trace " + value)
+}
\ No newline at end of file
diff --git a/assets/libraries/std/std.rhea b/assets/libraries/std/std.rhea
index 4b29b34..468fd3b 100644
--- a/assets/libraries/std/std.rhea
+++ b/assets/libraries/std/std.rhea
@@ -1,2 +1,4 @@
-var io = include "std.io";
-var math = include "math"
\ No newline at end of file
+var io = include "io";
+var math = include "math";
+
+var print = io.print;
\ No newline at end of file
diff --git a/src/syntax/token.rs b/src/syntax/token.rs
index 044bb36..ecfc47a 100644
--- a/src/syntax/token.rs
+++ b/src/syntax/token.rs
@@ -58,6 +58,7 @@ pub enum Token {
     #[token("const")] Const,
     #[token("var")] Var,
     #[token("func")] Func,
+    // Modules aren't real here ondra just variables with imported functions
     #[token("module")] Module,
 
     #[regex(