finished beeing able to use function as function in rust

src/main.rs

@@ -1,5 +1,4 @@
 use std::env;
-use meval::tokenizer::tokenize;
 
 fn main() {
     let args: Vec<String> = env::args().skip(1).take(3).collect();
@@ -23,7 +22,6 @@ fn main() {
     #[cfg(debug_assertions)]
     default_points(&mut points);
 
-
     group_by_x(&mut points);
 
     let m1 = (points[0][1] - points[1][1]) / (points[0][0] - points[1][0]);
@@ -36,8 +34,11 @@ fn main() {
     if function.contains("NaN") {
         panic!("Contains NaN, this is probably the result of bad math");
     }
-    let expr2 = tokenize(function.as_str()).unwrap();
-    println!("{:?}", expr2);
+    // let expr2 = tokenize(function.as_str()).unwrap();
+    // println!("{:?}", expr2);
+    let rust_function = function.parse::<meval::Expr>().unwrap().bind("x").unwrap();
+    let result = rust_function(9.0);
+    println!("{}", result);
 }
 
 fn default_points(points: &mut [[f64;2];3]) {