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## bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54

**From**: |
Torsten Bronger |

**Subject**: |
bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54 |

**Date**: |
Wed, 08 Feb 2017 19:52:02 +0100 |

**User-agent**: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |

Hallöchen!
Eli Zaretskii writes:
>*> From: Torsten Bronger <address@hidden>*
>*> Date: Wed, 8 Feb 2017 08:37:57 +0100*
>*> *
>*> *
>*> In Emacs calc usind degree mode, cos(1) results in 0.540302305868*
>*> instead of 0.999847695156.*
>
>* Are you sure you were in degree mode?*
Absolutely. And funny enough, cos(90) resulted in zero(!). For the
whole time, Deg was in the modeline, and I didn't switch anything.
Also with "emacs -q". The sequence "m d 90 C 1 C m r 90 C 1 C"
yields:
0
0.540302305868
-0.448073616129
0.540302305868
Tschö,
Torsten.
--
Torsten Bronger

**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Torsten Bronger*, `2017/02/08`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Eli Zaretskii*, `2017/02/08`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**,
*Torsten Bronger* **<=**

**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Óscar Fuentes*, `2017/02/08`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Torsten Bronger*, `2017/02/09`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *npostavs*, `2017/02/09`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Glenn Morris*, `2017/02/09`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Torsten Bronger*, `2017/02/10`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Torsten Bronger*, `2017/02/10`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Torsten Bronger*, `2017/02/11`
**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *npostavs*, `2017/02/11`

**bug#25652: 26.0.50; calc says that cos(1 degree) is 0.54**, *Tino Calancha*, `2017/02/12`