2 files changed, 20 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
index 6b1d6e1..49a32b0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,7 @@
 mod codes;
 pub mod custom_char;
 mod of_node;
+pub mod special_char;
 
 use std::fs::{File, OpenOptions};
 use std::path::Path;
diff --git a/src/special_char.rs b/src/special_char.rs
new file mode 100644
index 0000000..a5a8807
--- /dev/null
+++ b/src/special_char.rs
@@ -0,0 +1,19 @@
+pub const ALPHA: u8 = 0xe0;
+pub const BETA: u8 = 0xe2;
+pub const EPSILON: u8 = 0xe3;
+pub const MU: u8 = 0xe4;
+pub const SIGMA: u8 = 0xe5;
+pub const RO: u8 = 0xe6;
+pub const THETA: u8 = 0xf2;
+pub const OMEGA: u8 = 0xf4;
+pub const SIGMA_UPPER: u8 = 0xf6;
+pub const PI: u8 = 0xf7;
+
+pub const SQRT: u8 = 0xe8;
+pub const INV: u8 = 0xe9;
+pub const INFINITE: u8 = 0xf3;
+pub const DIV: u8 = 0xfd;
+pub const MEAN: u8 = 0xf8;
+
+pub const MEDIAN_DOT: u8 = 0xa5;
+pub const BLOCK: u8 = 0xff;