diff --git a/Program.cs b/Program.cs
index 5f675a5..fad6b77 100644
--- a/Program.cs
+++ b/Program.cs
@@ -16,6 +16,8 @@
 
 using AngouriMath;
 using AngouriMath.Extensions;
+using HonkSharp;
+using HonkSharp.Functional;
 
 var cliArgs = System.Environment.GetCommandLineArgs();
 var reader = new ArgReader(cliArgs);
@@ -74,12 +76,23 @@ amcli diff - to differentiate the expression over the given variable
                 $ echo "1 + x^2" | amcli diff "x"
                 2 * x
 
-            SIMPLIFY
+            SIMP
 
-            amcli simplify - to simplify the expression. Expects one argument.
+            amcli simp - to simplify the expression. Expects one argument.
 
             Example:
-                $ amcli simplify "sin(x)^2 + cos(x)^2"
+                $ amcli simp "sin(x)^2 + cos(x)^2"
+                1
+
+            FSIMP
+
+            amcli fsimp - to simplify the expression "faster". This one works
+            closer to eval than to simp, but unlike eval, it won't try to
+            collapse to a single number or boolean (e. g. sqrt(3) will stay as
+            it is). Expects one argument. 
+
+            Example:
+                $ amcli fsimp "sin(x)^2 + cos(x)^2"
                 1
 
             SOLVE
@@ -198,7 +211,7 @@ Here the result of `echo` is substituted instead of the second argument
         Console.WriteLine(expr.Latexise());
         break;
 
-    case "simplify":
+    case "simp":
         expr = reader.Next().ToEntity();
         Console.WriteLine(expr.Simplify());
         break;
diff --git a/README b/README
index 91dc587..d6ed94d 100644
--- a/README
+++ b/README
@@ -42,12 +42,23 @@ COMMANDS
         $ echo "1 + x^2" | amcli diff "x"
         2 * x
 
-    SIMPLIFY
+    SIMP
 
-    amcli simplify - to simplify the expression. Expects one argument.
+    amcli simp - to simplify the expression. Expects one argument.
 
     Example:
-        $ amcli simplify "sin(x)^2 + cos(x)^2"
+        $ amcli simp "sin(x)^2 + cos(x)^2"
+        1
+
+    FSIMP
+
+    amcli fsimp - to simplify the expression "faster". This one works
+    closer to eval than to simp, but unlike eval, it won't try to
+    collapse to a single number or boolean (e. g. sqrt(3) will stay as
+    it is). Expects one argument. 
+
+    Example:
+        $ amcli fsimp "sin(x)^2 + cos(x)^2"
         1
 
     SOLVE