diff --git a/include/abacus.hpp b/include/abacus.hpp
new file mode 100644
index 0000000..25eaa6d
--- /dev/null
+++ b/include/abacus.hpp
@@ -0,0 +1,99 @@
+#pragma once
+
+#include "ref.hpp"
+extern "C" {
+#include "libabacus.h"
+#include "table.h"
+#include "value.h"
+#include "util.h"
+}
+
+class abacus {
+    private:
+        libab ab;
+        abacus_ref scope;
+        std::map<std::string, abacus_ref> compiled_types;
+        libab_basetype basetype_string = { [](void* s) { delete ((string*) s); }, NULL, 0 };
+    public:
+        abacus();
+        void add_variable(const std::string& name, abacus_ref val);
+        void add_function(const std::string& name, libab_function_ptr ptr, const std::string& type);
+        void add_operator_infix(const std::string& op, const std::string& func, int assoc, int prec);
+        void add_operator_prefix(const std::string& op, const std::string& func);
+        void add_operator_postfix(const std::string& op, const std::string& func);
+        abacus_ref run(const std::string& code);
+        template <typename ... Ts>
+        abacus_ref call(const std::string& bane, Ts...params);
+        std::string to_string(abacus_ref& value);
+        ~abacus();
+};
+
+abacus::abacus() {
+    auto parse_function = [](const char* s) {
+        return (void*) new number(s);
+    };
+    auto free_function = [](void* num) {
+        delete ((number*) num);
+    };
+    libab_init(&ab, parse_function, free_function);
+    libab_register_basetype(&ab, "str", &basetype_string);
+    libab_create_table(&ab, scope, &ab.table);
+}
+
+void abacus::add_variable(const std::string& name, abacus_ref val) {
+    libab_table_entry* entry = libab_table_search_entry_value(get<libab_table>(scope), name.c_str());
+    if(entry) {
+        libab_ref_free(&entry->data_u.value);
+        libab_ref_copy(val, &entry->data_u.value);
+    } else {
+        libab_put_table_value(get<libab_table>(scope), name.c_str(), std::move(val));
+    }
+}
+
+void abacus::add_function(const std::string& name, libab_function_ptr ptr, const std::string& type) {
+    if(compiled_types.find(type) != compiled_types.end()) {
+        libab_register_function(&ab, name.c_str(), compiled_types[type], ptr);
+    } else {
+        abacus_ref& new_ref = compiled_types[type];
+        libab_create_type(&ab, new_ref, type.c_str());
+        libab_register_function(&ab, name.c_str(), new_ref, ptr);
+    }
+}
+
+void abacus::add_operator_infix(const std::string& op, const std::string& func, int assoc, int prec) {
+    libab_register_operator_infix(&ab, op.c_str(), prec, assoc, func.c_str());
+}
+void abacus::add_operator_prefix(const std::string& op, const std::string& func) {
+    libab_register_operator_prefix(&ab, op.c_str(), func.c_str());
+}
+void abacus::add_operator_postfix(const std::string& op, const std::string& func) {
+    libab_register_operator_postfix(&ab, op.c_str(), func.c_str());
+}
+
+abacus_ref abacus::run(const std::string& code) {
+    abacus_ref value;
+    libab_run_scoped(&ab, code.c_str(), scope, value);
+    libab_gc_run(&ab.containers);
+    return value;
+}
+
+template <typename ... Ts>
+abacus_ref abacus::call(const std::string& name, Ts...params) {
+    abacus_ref value;
+    libab_run_function_scoped(&ab, name.c_str(), scope, value, sizeof...(params), (libab_ref*) params...);
+    libab_gc_run(&ab.containers);
+    return value;
+}
+
+std::string abacus::to_string(abacus_ref& val) {
+    abacus_ref string_value = call("to_string", val);
+    if(string_value == nullptr) return "Unable to convert to string.";
+    libab_basetype* base = get<libab_parsetype>(&get<libab_value>(string_value)->type)->data_u.base;
+    if(base != &basetype_string) return "\"to_string\" did not return string.";
+    return get<string>(&get<libab_value>(string_value)->data)->value;
+}
+
+abacus::~abacus() {
+    scope = nullptr;
+    libab_free(&ab);
+}
diff --git a/include/config.hpp b/include/config.hpp
new file mode 100644
index 0000000..3fc4e51
--- /dev/null
+++ b/include/config.hpp
@@ -0,0 +1,3 @@
+#pragma once
+
+#define PRECISION 200
diff --git a/include/functions.hpp b/include/functions.hpp
new file mode 100644
index 0000000..9654802
--- /dev/null
+++ b/include/functions.hpp
@@ -0,0 +1,61 @@
+#pragma once
+
+extern "C" {
+#include "libabacus.h"
+}
+
+#define FUNCTION(name) libab_result function_##name( \
+        libab* ab, libab_ref* scope, libab_ref_vec* params, libab_ref* into)
+
+#define FUNCTION_MPFR(name, func) FUNCTION(name) { \
+    number* value = (number*) libab_unwrap_param(params, 0); \
+    mpfr_t output; \
+    mpfr_init2(output, PRECISION); \
+    mpfr_##func(output, value->value, MPFR_RNDN); \
+    abacus_ref to_return = create_value<number>(ab, new number(std::move(output))); \
+    libab_ref_copy(to_return, into); \
+    return LIBAB_SUCCESS; \
+}
+
+#define FUNCTION_MPFR2(name, func) FUNCTION(name) { \
+    number* left = (number*) libab_unwrap_param(params, 0); \
+    number* right = (number*) libab_unwrap_param(params, 1); \
+    mpfr_t output; \
+    mpfr_init2(output, PRECISION); \
+    mpfr_##func(output, left->value, right->value, MPFR_RNDN); \
+    abacus_ref to_return = create_value<number>(ab, new number(std::move(output))); \
+    libab_ref_copy(to_return, into); \
+    return LIBAB_SUCCESS; \
+}
+
+#define FUNCTION_COMPARE(name, op) FUNCTION(name) { \
+    number* left = (number*) libab_unwrap_param(params, 0); \
+    number* right = (number*) libab_unwrap_param(params, 1); \
+    libab_get_bool_value(ab, mpfr_cmp(left->value, right->value) op 0, into); \
+    return LIBAB_SUCCESS; \
+}
+
+FUNCTION(print_string);
+FUNCTION(to_string_num);
+FUNCTION(to_string_bool);
+FUNCTION(to_string_unit);
+FUNCTION(plus);
+FUNCTION(minus);
+FUNCTION(times);
+FUNCTION(divide);
+FUNCTION(lt);
+FUNCTION(lte);
+FUNCTION(equals);
+FUNCTION(gt);
+FUNCTION(gte);
+FUNCTION(negate);
+FUNCTION(ln);
+FUNCTION(exp);
+FUNCTION(sin);
+FUNCTION(cos);
+FUNCTION(tan);
+FUNCTION(arcsin);
+FUNCTION(arccos);
+FUNCTION(arctan);
+FUNCTION(quit);
+FUNCTION(request_precision);
diff --git a/include/ref.hpp b/include/ref.hpp
new file mode 100644
index 0000000..2ef97c3
--- /dev/null
+++ b/include/ref.hpp
@@ -0,0 +1,65 @@
+#pragma once
+
+extern "C" {
+#include "libabacus.h"
+#include "util.h"
+}
+
+class abacus_ref {
+    private:
+        libab_ref ref;
+    public:
+        abacus_ref();
+        abacus_ref(void* data, void (*free_func)(void*));
+        abacus_ref(const abacus_ref& other);
+        abacus_ref& operator=(const abacus_ref& other);
+        abacus_ref& operator=(std::nullptr_t);
+        template <typename T>
+        bool operator==(T data);
+        operator libab_ref*() {
+            return &ref;
+        }
+        ~abacus_ref();
+};
+
+template <typename T>
+T* get(libab_ref* ref) {
+    return (T*) libab_ref_get(ref);
+}
+
+abacus_ref::abacus_ref() {
+    libab_ref_null(&ref);
+}
+
+abacus_ref::abacus_ref(void* data, void (*free_func)(void*)) {
+    libab_ref_new(&ref, data, free_func);
+}
+
+abacus_ref::abacus_ref(const abacus_ref& other) {
+    libab_ref_copy(&other.ref, &ref);
+}
+
+abacus_ref& abacus_ref::operator=(const abacus_ref& other) {
+    libab_ref_copy(&other.ref, &ref);
+    return *this;
+}
+
+abacus_ref& abacus_ref::operator=(std::nullptr_t t) {
+    libab_ref_free(&ref);
+    libab_ref_null(&ref);
+    return *this;
+}
+
+template <typename T>
+bool abacus_ref::operator==(T data) {
+    return libab_ref_get(&ref) == (void*) data;
+}
+
+template <>
+bool abacus_ref::operator==<std::nullptr_t>(std::nullptr_t t) {
+    return libab_ref_get(&ref) == t;
+}
+
+abacus_ref::~abacus_ref() {
+    libab_ref_free(&ref);
+}
diff --git a/include/types.hpp b/include/types.hpp
new file mode 100644
index 0000000..ea7392c
--- /dev/null
+++ b/include/types.hpp
@@ -0,0 +1,28 @@
+#pragma once
+#include <mpfr.h>
+#include <string>
+#include "config.hpp"
+
+struct string {
+    std::string value;
+    string(std::string&& new_value) : value(std::move(new_value)) {}
+    string(const std::string& new_value) : value(new_value) {}
+};
+
+struct number {
+    mpfr_t value;
+    number(const char* new_value) {
+        mpfr_init2(value, PRECISION);
+        mpfr_set_str(value, new_value, 10, MPFR_RNDN);
+    }
+    number(mpfr_t&& new_value) {
+        std::swap(value, new_value);
+    }
+    int to_int() {
+        return mpfr_get_si(value, MPFR_RNDN);
+    }
+    ~number() {
+        mpfr_clear(value);
+    }
+};
+
diff --git a/src/main.cpp b/src/main.cpp
index 56d73e8..dc8feec 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,6 +3,10 @@
 #include <mpfr.h>
 #include <readline/readline.h>
 #include <readline/history.h>
+#include "types.hpp"
+#include "ref.hpp"
+#include "functions.hpp"
+#include "abacus.hpp"
 extern "C" {
 #include "libabacus.h"
 #include "table.h"
@@ -10,99 +14,13 @@ extern "C" {
 #include "util.h"
 }
 
-#define PRECISION 200
 
 // == Global State (uh-oh)
 bool close_requested = false;
 long requested_precision = 3;
 
-// == STRING Type
-struct string {
-    std::string value;
-    string(std::string&& new_value) : value(std::move(new_value)) {}
-    string(const std::string& new_value) : value(new_value) {}
-};
-
-// MPFR Type
-struct number {
-    mpfr_t value;
-    number(const char* new_value) {
-        mpfr_init2(value, PRECISION);
-        mpfr_set_str(value, new_value, 10, MPFR_RNDN);
-    }
-    number(mpfr_t&& new_value) {
-        std::swap(value, new_value);
-    }
-    int to_int() {
-        return mpfr_get_si(value, MPFR_RNDN);
-    }
-    ~number() {
-        mpfr_clear(value);
-    }
-};
-
-// == Reference Wrapper 
-class abacus_ref {
-    private:
-        libab_ref ref;
-    public:
-        abacus_ref();
-        abacus_ref(void* data, void (*free_func)(void*));
-        abacus_ref(const abacus_ref& other);
-        abacus_ref& operator=(const abacus_ref& other);
-        abacus_ref& operator=(std::nullptr_t);
-        template <typename T>
-        bool operator==(T data);
-        operator libab_ref*() {
-            return &ref;
-        }
-        ~abacus_ref();
-};
-
-template <typename T>
-T* get(libab_ref* ref) {
-    return (T*) libab_ref_get(ref);
-}
-
-abacus_ref::abacus_ref() {
-    libab_ref_null(&ref);
-}
-
-abacus_ref::abacus_ref(void* data, void (*free_func)(void*)) {
-    libab_ref_new(&ref, data, free_func);
-}
-
-abacus_ref::abacus_ref(const abacus_ref& other) {
-    libab_ref_copy(&other.ref, &ref);
-}
-
-abacus_ref& abacus_ref::operator=(const abacus_ref& other) {
-    libab_ref_copy(&other.ref, &ref);
-    return *this;
-}
-
-abacus_ref& abacus_ref::operator=(std::nullptr_t t) {
-    libab_ref_free(&ref);
-    libab_ref_null(&ref);
-    return *this;
-}
-
-template <typename T>
-bool abacus_ref::operator==(T data) {
-    return libab_ref_get(&ref) == (void*) data;
-}
-
-template <>
-bool abacus_ref::operator==<std::nullptr_t>(std::nullptr_t t) {
-    return libab_ref_get(&ref) == t;
-}
-
-abacus_ref::~abacus_ref() {
-    libab_ref_free(&ref);
-}
 //
 // == BASIC FUNCTIONS
-#define FUNCTION(name) libab_result function_##name(libab* ab, libab_ref* scope, libab_ref_vec* params, libab_ref* into)
 
 template <typename T>
 abacus_ref create_value(libab* ab, T* val);
@@ -160,42 +78,6 @@ FUNCTION(to_string_unit) {
     return LIBAB_SUCCESS;
 }
 
-#define OPERATOR_FUNCTION(name, op) FUNCTION(name) { \
-    number* left = (number*) libab_unwrap_param(params, 0); \
-    number* right = (number*) libab_unwrap_param(params, 1); \
-    abacus_ref value = create_value(ab, *left op *right); \
-    libab_ref_copy(value, into); \
-    return LIBAB_SUCCESS; \
-}
-
-#define FUNCTION_MPFR(name, func) FUNCTION(name) { \
-    number* value = (number*) libab_unwrap_param(params, 0); \
-    mpfr_t output; \
-    mpfr_init2(output, PRECISION); \
-    mpfr_##func(output, value->value, MPFR_RNDN); \
-    abacus_ref to_return = create_value<number>(ab, new number(std::move(output))); \
-    libab_ref_copy(to_return, into); \
-    return LIBAB_SUCCESS; \
-}
-
-#define FUNCTION_MPFR2(name, func) FUNCTION(name) { \
-    number* left = (number*) libab_unwrap_param(params, 0); \
-    number* right = (number*) libab_unwrap_param(params, 1); \
-    mpfr_t output; \
-    mpfr_init2(output, PRECISION); \
-    mpfr_##func(output, left->value, right->value, MPFR_RNDN); \
-    abacus_ref to_return = create_value<number>(ab, new number(std::move(output))); \
-    libab_ref_copy(to_return, into); \
-    return LIBAB_SUCCESS; \
-}
-
-#define FUNCTION_COMPARE(name, op) FUNCTION(name) { \
-    number* left = (number*) libab_unwrap_param(params, 0); \
-    number* right = (number*) libab_unwrap_param(params, 1); \
-    libab_get_bool_value(ab, mpfr_cmp(left->value, right->value) op 0, into); \
-    return LIBAB_SUCCESS; \
-}
-
 FUNCTION_MPFR2(plus, add)
 FUNCTION_MPFR2(minus, sub)
 FUNCTION_MPFR2(times, mul)
@@ -221,8 +103,6 @@ FUNCTION_MPFR(arcsin, asin);
 FUNCTION_MPFR(arccos, acos);
 FUNCTION_MPFR(arctan, atan);
 
-FUNCTION(sqrt);
-
 FUNCTION(quit) {
     close_requested = true;
     libab_get_unit_value(ab, into);
@@ -236,96 +116,6 @@ FUNCTION(request_precision) {
     return LIBAB_SUCCESS;
 }
 
-// == Main class
-class abacus {
-    private:
-        libab ab;
-        abacus_ref scope;
-        std::map<std::string, abacus_ref> compiled_types;
-        libab_basetype basetype_string = { [](void* s) { delete ((string*) s); }, NULL, 0 };
-    public:
-        abacus();
-        void add_variable(const std::string& name, abacus_ref val);
-        void add_function(const std::string& name, libab_function_ptr ptr, const std::string& type);
-        void add_operator_infix(const std::string& op, const std::string& func, int assoc, int prec);
-        void add_operator_prefix(const std::string& op, const std::string& func);
-        void add_operator_postfix(const std::string& op, const std::string& func);
-        abacus_ref run(const std::string& code);
-        template <typename ... Ts>
-        abacus_ref call(const std::string& bane, Ts...params);
-        std::string to_string(abacus_ref& value);
-        ~abacus();
-};
-
-abacus::abacus() {
-    auto parse_function = [](const char* s) {
-        return (void*) new number(s);
-    };
-    auto free_function = [](void* num) {
-        delete ((number*) num);
-    };
-    libab_init(&ab, parse_function, free_function);
-    libab_register_basetype(&ab, "str", &basetype_string);
-    libab_create_table(&ab, scope, &ab.table);
-}
-
-void abacus::add_variable(const std::string& name, abacus_ref val) {
-    libab_table_entry* entry = libab_table_search_entry_value(get<libab_table>(scope), name.c_str());
-    if(entry) {
-        libab_ref_free(&entry->data_u.value);
-        libab_ref_copy(val, &entry->data_u.value);
-    } else {
-        libab_put_table_value(get<libab_table>(scope), name.c_str(), std::move(val));
-    }
-}
-
-void abacus::add_function(const std::string& name, libab_function_ptr ptr, const std::string& type) {
-    if(compiled_types.find(type) != compiled_types.end()) {
-        libab_register_function(&ab, name.c_str(), compiled_types[type], ptr);
-    } else {
-        abacus_ref& new_ref = compiled_types[type];
-        libab_create_type(&ab, new_ref, type.c_str());
-        libab_register_function(&ab, name.c_str(), new_ref, ptr);
-    }
-}
-
-void abacus::add_operator_infix(const std::string& op, const std::string& func, int assoc, int prec) {
-    libab_register_operator_infix(&ab, op.c_str(), prec, assoc, func.c_str());
-}
-void abacus::add_operator_prefix(const std::string& op, const std::string& func) {
-    libab_register_operator_prefix(&ab, op.c_str(), func.c_str());
-}
-void abacus::add_operator_postfix(const std::string& op, const std::string& func) {
-    libab_register_operator_postfix(&ab, op.c_str(), func.c_str());
-}
-
-abacus_ref abacus::run(const std::string& code) {
-    abacus_ref value;
-    libab_run_scoped(&ab, code.c_str(), scope, value);
-    libab_gc_run(&ab.containers);
-    return value;
-}
-
-template <typename ... Ts>
-abacus_ref abacus::call(const std::string& name, Ts...params) {
-    abacus_ref value;
-    libab_run_function_scoped(&ab, name.c_str(), scope, value, sizeof...(params), (libab_ref*) params...);
-    libab_gc_run(&ab.containers);
-    return value;
-}
-
-std::string abacus::to_string(abacus_ref& val) {
-    abacus_ref string_value = call("to_string", val);
-    if(string_value == nullptr) return "Unable to convert to string.";
-    libab_basetype* base = get<libab_parsetype>(&get<libab_value>(string_value)->type)->data_u.base;
-    if(base != &basetype_string) return "\"to_string\" did not return string.";
-    return get<string>(&get<libab_value>(string_value)->data)->value;
-}
-
-abacus::~abacus() {
-    scope = nullptr;
-    libab_free(&ab);
-}
 int main() {
     abacus ab;
     rl_bind_key('\t', rl_insert);