Fixed minus printing

src/quantity/mod.rs

@@ -3,5 +3,5 @@ mod rationalq;
 pub mod quantity;
 pub use crate::quantity::quantity::Quantity;
 
-const FLOAT_PRECISION: u32 = 2048;
+const FLOAT_PRECISION: u32 = 1024;
 const PRINT_LEN: usize = 5; // How many significant digits we will show in output

src/quantity/quantity.rs

@@ -246,6 +246,20 @@ impl Quantity {
 			Quantity::Rational { .. } => {panic!()}
 		}
 	}
+
+	pub fn is_negative(&self) -> bool {
+		match self {
+			Quantity::Float { v } => {v.is_sign_negative() && v.is_normal()},
+			Quantity::Rational { v } => {v.is_negative()}
+		}
+	}
+
+	pub fn is_positive(&self) -> bool {
+		match self {
+			Quantity::Float { v } => {v.is_sign_positive() && v.is_normal()},
+			Quantity::Rational { v } => {v.is_positive()}
+		}
+	}
 }
 
 impl Neg for Quantity where {

src/quantity/rationalq.rs

@@ -86,6 +86,9 @@ impl RationalQ {
 	}
 
 
+	pub fn is_negative(&self) -> bool { self.val.clone().signum() == -1 }
+	pub fn is_positive(&self) -> bool { self.val.clone().signum() == 1 }
+
 	pub fn exp(&self) -> Quantity {float!(self.to_float().exp())}
 
 	pub fn abs(&self) -> Quantity {rational!(self.val.clone().abs())}