1 files changed, 10 insertions, 9 deletions

diff --git a/src/main.rs b/src/main.rs
index 34adc14..534d634 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -47,11 +47,12 @@ impl Application for Graph {
     type Flags = ();
 
     fn new(_flags: ()) -> (Self, Command<Message>) {
+        let ctx = Context::commonsense();
         (
             Graph {
                 input_state: "f(x) = x^2".to_string(),
-                func: ExpressionFunction::from_string("f(x) = x^2".to_string()),
-                ctx: Context::commonsense(),
+                func: ExpressionFunction::from_string("f(x) = x^2".to_string(), ctx.operations()),
+                ctx,
                 ..Default::default()
             },
             Command::none(),
@@ -68,7 +69,7 @@ impl Application for Graph {
                 self.input_state = s;
             }
             Message::UpdateScreen => {
-                self.func = ExpressionFunction::from_string(self.input_state.clone());
+                self.func = ExpressionFunction::from_string(self.input_state.clone(), self.ctx.operations());
                 self.graph.clear();
             }
         }
@@ -137,26 +138,26 @@ impl canvas::Program<Message, Renderer> for Graph {
             let unitline = Stroke {
                 width: 2.0,
                 style: stroke::Style::Solid(Color::new(0.0, 0.0, 0.0, 1.0)),
-                line_cap: LineCap::Square,
+                line_cap: LineCap::Round,
                 ..Stroke::default()
             };
             let unitline_whole = Stroke {
                 width: 1.0,
                 style: stroke::Style::Solid(Color::new(0.5, 0.5, 0.5, 1.0)),
-                line_cap: LineCap::Square,
+                line_cap: LineCap::Round,
                 ..Stroke::default()
             };
             let zeroline = Stroke {
                 width: 3.0,
                 style: stroke::Style::Solid(Color::new(0.0, 0.0, 0.8, 1.0)),
-                line_cap: LineCap::Square,
+                line_cap: LineCap::Round,
                 ..Stroke::default()
             };
 
             let graphline = Stroke {
                 width: 3.0,
                 style: stroke::Style::Solid(Color::new(0.8, 0.0, 0.0, 1.0)),
-                line_cap: LineCap::Square,
+                line_cap: LineCap::Round,
                 ..Stroke::default()
             };
 
@@ -230,7 +231,7 @@ impl canvas::Program<Message, Renderer> for Graph {
                 let mut y1 = self
                     .func
                     .eval(
-                        FunctionArgument::new(vec![Complex::new(start_x as f64, 0.0)]),
+                        &FunctionArgument::from_values(vec![Complex::new(start_x as f64, 0.0)]),
                         &self.ctx,
                     )
                     .unwrap()
@@ -243,7 +244,7 @@ impl canvas::Program<Message, Renderer> for Graph {
                         let y2 = self
                             .func
                             .eval(
-                                FunctionArgument::new(vec![Complex::new(x2 as f64, 0.0)]),
+                                &FunctionArgument::from_values(vec![Complex::new(x2 as f64, 0.0)]),
                                 &self.ctx,
                             )
                             .unwrap()