From 6e599112c2fd5bff09e942b61b5e2f4debef5042 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Mon, 19 Aug 2019 10:32:23 +0200
Subject: [PATCH] product:: made cpush0 work correctly

---
 hyperpoint.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hyperpoint.cpp b/hyperpoint.cpp
index 6702903a..09ce2991 100644
--- a/hyperpoint.cpp
+++ b/hyperpoint.cpp
@@ -991,6 +991,10 @@ EX transmatrix transpose(transmatrix T) {
 #if HDR
 inline hyperpoint cpush0(int c, ld x) { 
   hyperpoint h = Hypc;
+  if(c == 2 && prod) {
+    h[2] = exp(x);
+    return h;
+    }
   h[LDIM] = cos_auto(x);
   h[c] = sin_auto(x);
   return h;