From 39b41cc2ae0b8c7071c42fe50b8cd08b1016e15f Mon Sep 17 00:00:00 2001
From: Iaroslav Postovalov <postovalovya@gmail.com>
Date: Wed, 10 Mar 2021 22:40:43 +0700
Subject: [PATCH] Fix #223

---
 .../kotlin/space/kscience/kmath/operations/Algebra.kt           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kmath-core/src/commonMain/kotlin/space/kscience/kmath/operations/Algebra.kt b/kmath-core/src/commonMain/kotlin/space/kscience/kmath/operations/Algebra.kt
index 572f7089a..6bb7d5ed7 100644
--- a/kmath-core/src/commonMain/kotlin/space/kscience/kmath/operations/Algebra.kt
+++ b/kmath-core/src/commonMain/kotlin/space/kscience/kmath/operations/Algebra.kt
@@ -188,7 +188,7 @@ public interface SpaceOperations<T> : Algebra<T> {
     public operator fun Number.times(b: T): T = b * this
 
     public override fun unaryOperationFunction(operation: String): (arg: T) -> T = when (operation) {
-        PLUS_OPERATION -> { arg -> arg }
+        PLUS_OPERATION -> { arg -> +arg }
         MINUS_OPERATION -> { arg -> -arg }
         else -> super.unaryOperationFunction(operation)
     }
-- 
2.34.1