#2263 trigrat(sin(%pi/5)) makes mess

open
nobody
5
2012-11-18
2011-08-25
No

See also bug reports ID: 742909 and ID: 2999635

INPUT

build_info();
display2d : false;
trigrat(sin(%pi/5));

INPUT AND OUTPUT

(%i1) build_info();
Maxima version: 5.25.0
Maxima build date: 12:0 8/2/2011
Host type: i686-pc-mingw32
Lisp implementation type: Clozure Common Lisp
Lisp implementation version: Version 1.7-r14925M (WindowsX8632)
(%o1)
(%i2) display2d : false;
(%o2) false
(%i3) trigrat(sin(%pi/5));
(%o3) -(-sin(3*%pi/5)+%i*(cos(3*%pi/5)-cos(2*%pi/5)+2*cos(%pi/5)-1)
+sin(2*%pi/5)-2*sin(%pi/5))
/2

Discussion


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