1 files changed, 71 insertions, 0 deletions
diff --git a/library/src/math/group.rs b/library/src/math/group.rs
new file mode 100644
index 00000000..4a55e0e8
--- /dev/null
+++ b/library/src/math/group.rs
@@ -0,0 +1,71 @@
+use super::*;
+
+/// # Floor
+/// A floored expression.
+///
+/// ## Example
+/// ```
+/// $ floor(x/2) $
+/// ```
+///
+/// ## Parameters
+/// - body: Content (positional, required)
+///   The expression to floor.
+///
+/// ## Category
+/// math
+#[func]
+#[capable(Texify)]
+#[derive(Debug, Hash)]
+pub struct FloorNode(pub Content);
+
+#[node]
+impl FloorNode {
+    fn construct(_: &Vm, args: &mut Args) -> SourceResult<Content> {
+        Ok(Self(args.expect("body")?).pack())
+    }
+}
+
+impl Texify for FloorNode {
+    fn texify(&self, t: &mut Texifier) -> SourceResult<()> {
+        t.push_str("\\left\\lfloor ");
+        self.0.texify(t)?;
+        t.push_str("\\right\\rfloor ");
+        Ok(())
+    }
+}
+
+/// # Ceil
+/// A ceiled expression.
+///
+/// ## Example
+/// ```
+/// $ ceil(x/2) $
+/// ```
+///
+/// ## Parameters
+/// - body: Content (positional, required)
+///   The expression to ceil.
+///
+/// ## Category
+/// math
+#[func]
+#[capable(Texify)]
+#[derive(Debug, Hash)]
+pub struct CeilNode(pub Content);
+
+#[node]
+impl CeilNode {
+    fn construct(_: &Vm, args: &mut Args) -> SourceResult<Content> {
+        Ok(Self(args.expect("body")?).pack())
+    }
+}
+
+impl Texify for CeilNode {
+    fn texify(&self, t: &mut Texifier) -> SourceResult<()> {
+        t.push_str("\\left\\lceil ");
+        self.0.texify(t)?;
+        t.push_str("\\right\\rceil ");
+        Ok(())
+    }
+}