diff --git a/src/bin/ccc/mod.rs b/src/bin/ccc/mod.rs
index 88d9532..9e48d5d 100644
--- a/src/bin/ccc/mod.rs
+++ b/src/bin/ccc/mod.rs
@@ -15,7 +15,7 @@
 #![warn(clippy::pedantic)]
 
 //// IMPORTS ///////////////////////////////////////////////////////////////////////////////////////
-use pt::math::computer::*;
+use pt::math::computer::{*, self};
 use pt::logger::*;
 
 use clap::{Parser, Subcommand};
@@ -126,7 +126,9 @@ fn main() {
     for part in cli.expression {
         expr += ∂
     }
-    
-    info!("exporssion: {}", expr);
+
+    debug!("exporssion: {}", expr);
+    let r = Computer::oneshot(expr);
+    println!("{}", r.unwrap());
 }
 ////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/src/bin/main/mod.rs b/src/bin/main/mod.rs
index 86ca5f3..cea1cb7 100644
--- a/src/bin/main/mod.rs
+++ b/src/bin/main/mod.rs
@@ -15,7 +15,7 @@
 
 
 //// IMPORTS ///////////////////////////////////////////////////////////////////////////////////////
-use pt::{logger, networking::monitoring::uptime};
+use pt::{logger, networking::monitoring::uptime, common::*};
 
 // we want the log macros in any case
 #[allow(unused_imports)]
@@ -30,8 +30,6 @@ use std::path::PathBuf;
 
 //// CONSTANTS /////////////////////////////////////////////////////////////////////////////////////
 #[allow(dead_code)]
-const EXIT_SUCCESS: i32 = 0;
-const EXIT_FAILURE_USAGE: i32 = 1;
 
 //// STATICS ///////////////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/common/mod.rs b/src/common/mod.rs
index 2c1382e..6f1467b 100644
--- a/src/common/mod.rs
+++ b/src/common/mod.rs
@@ -23,6 +23,8 @@ pub mod macros;
 pub mod printing;
 
 //// CONSTANTS /////////////////////////////////////////////////////////////////////////////////////
+pub const EXIT_SUCCESS: i32 = 0;
+pub const EXIT_FAILURE_USAGE: i32 = 1;
 
 //// STATICS ///////////////////////////////////////////////////////////////////////////////////////
 
diff --git a/src/math/computer/mod.rs b/src/math/computer/mod.rs
index e5911b6..043f920 100644
--- a/src/math/computer/mod.rs
+++ b/src/math/computer/mod.rs
@@ -30,15 +30,38 @@ use crate::logger::{trace, debug, info, warn, error};
 //// MACROS ////////////////////////////////////////////////////////////////////////////////////////
 
 //// ENUMS /////////////////////////////////////////////////////////////////////////////////////////
-#[non_exhaustive]
-pub enum Constants {
-    Pi
-}
+// #[non_exhaustive]
+// #[derive(Debug)]
+// pub enum Constants {
+//     Pi
+// }
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 #[non_exhaustive]
+#[derive(Debug)]
+/// ## Supported Operations
+///
+/// This `enum` contains all operations supported in this module.
 pub enum Operations {
-    Addit
+    /// Mathmatical addition
+    Addition,
+    /// Mathmatical subtraction
+    Subtraction,
+    /// Mathmatical multiplication
+    Multiplication,
+    /// Mathmatical division
+    Division,
+    /// Mathmatical modulo, finite field arithmetic
+    Modulo,
+    /// Draw the mathmatical root, attribute n is the nth root
+    Root(u16),
+    /// round up
+    Floor,
+    /// round down
+    Ceil,
+    /// round to nearest integer
+    /// (commercial rounding)
+    Round
 }
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -48,11 +71,11 @@ pub enum Functions {
 }
 
 //// STRUCTS ///////////////////////////////////////////////////////////////////////////////////////
-struct Computer;
+pub struct Computer;
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 #[derive(Debug)]
-struct Term {
+pub struct Term {
     original: String,
     result: Option<ComputeResult>,
     parts: Vec<String>
diff --git a/src/math/computer/result.rs b/src/math/computer/result.rs
index ccc588a..35f0406 100644
--- a/src/math/computer/result.rs
+++ b/src/math/computer/result.rs
@@ -12,6 +12,7 @@
 #![warn(clippy::pedantic)]
 
 //// IMPORTS ///////////////////////////////////////////////////////////////////////////////////////
+use std::fmt::Display;
 use num_traits;
 
 //// TYPES /////////////////////////////////////////////////////////////////////////////////////////
@@ -52,6 +53,7 @@ pub struct VarResult {
 
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
 #[derive(Debug)]
 pub struct ComplexResult {
 
@@ -75,6 +77,7 @@ impl<T: num_traits::PrimInt> From<T> for NumericResult where
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
 impl<T: num_traits::PrimInt> From<T> for ComputeResult where
     u128: TryFrom<T>,
     u128: TryFrom<T> {
@@ -83,12 +86,61 @@ impl<T: num_traits::PrimInt> From<T> for ComputeResult where
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
 impl From<NumericResult> for ComputeResult {
     fn from(value: NumericResult) -> Self {
         ComputeResult::Numerical(value)
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
+impl Display for ComputeResult {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            ComputeResult::Numerical(val) => {
+                write!(f, "{}", val)
+            }
+            ComputeResult::Complex(val) => {
+                write!(f, "{}", val)
+            }
+            ComputeResult::Variable(val) => {
+                write!(f, "{}", val)
+            }
+        }
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+impl Display for NumericResult {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            NumericResult::Float(val) => {
+                write!(f, "{val}")
+            }
+            NumericResult::Signed(val) => {
+                write!(f, "{val}")
+            }
+            NumericResult::Unsigned(val) => {
+                write!(f, "{val}")
+            }
+        }
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+impl Display for ComplexResult {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "")
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+impl Display for VarResult {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "")
+    }
+}
+
 //// PUBLIC FUNCTIONS //////////////////////////////////////////////////////////////////////////////
 
 //// PRIVATE FUNCTIONS /////////////////////////////////////////////////////////////////////////////