From de6adb74b6cf3c2112b7d14023b5961fce96c11e Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@gmail.com>
Date: Fri, 11 Feb 2022 14:35:04 -0500
Subject: [PATCH] cleanup

---
 src/func_plot.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/func_plot.rs b/src/func_plot.rs
index b9e4170..474ab1d 100644
--- a/src/func_plot.rs
+++ b/src/func_plot.rs
@@ -21,10 +21,10 @@ pub fn draw(
     root.fill(&WHITE)?;
 
     let mut chart = ChartBuilder::on(&root)
-        .margin(20 as f32)
+        .margin(20.0)
         .caption(format!("y={}", func_str), font)
-        .x_label_area_size(30 as f32)
-        .y_label_area_size(30 as f32)
+        .x_label_area_size(30.0)
+        .y_label_area_size(30.0)
         .build_cartesian_2d(min_x..max_x, min_y..max_y)?;
 
     chart.configure_mesh().x_labels(3).y_labels(3).draw()?;