fricas
(1) -> )lib AXIOM SINF SYMCAT SYMB AND SEXPR
>> System error:
The value
598
is not of type
LIST
fricas
t1 := cos(x)*sin(y) - cos(y)*sin(x)
Type: Expression(Integer)
fricas
t2 := - sin(x)*sin(y) + cos(x)*cos(y)
Type: Expression(Integer)
fricas
expr := tan(q)*tan(w) + t1*cos(x3) + t2*w*cos(a) + r3*t1*t2 + 5
Type: Expression(Integer)
fricas
rs:=_rule(cos(x)*sin(y)-sin(x)*cos(y), sin(y-x))
Type: RewriteRule
?(Integer,
Integer,
Expression(Integer))
fricas
rc:=_rule(cos(x)*cos(y)-sin(x)*sin(y), cos(x+y))
Type: RewriteRule
?(Integer,
Integer,
Expression(Integer))
fricas
rs t1
Type: Expression(Integer)
fricas
rs t2
Type: Expression(Integer)
fricas
rc t1
Type: Expression(Integer)
fricas
rc t2
Type: Expression(Integer)
fricas
rc rs expr
Type: Expression(Integer)