Hello all,
I have a simple(ish) question about solve. I have an equation,
called "test" I want to solve "test" for the value "fl". I know the
values "r" and "c." Likewise, I actually also know the proper value
for "fl", but I can't get Maxima to give it to me.
/*-------------*/
/* My test equation */
test:6096*tan((2*atan(c/(2*fl)))/r) / (tan(((1/60)*(%pi/180))));
/* solve for fl ... */
solve(test=6096,fl);
/* what if we give c and r values? */
subst([c=7.176,r=3264],test);
solve(test=6096,fl);
/* still cant solve!, but I know that there is a solution.. */
subst([c=7.176,r=3264,fl=6.98149293282488],test);
float(%);
/*-------------*/
Is there something that I am missing, some built-in variable that I
should change.
Thanks
-Greg
---------
(%i13) /* My test equation */
test:6096*tan((2*atan(c/(2*fl)))/r) / (tan(((1/60)*(%pi/180))));
c
2 atan(----)
2 fl
6096 tan(------------)
r
(%o13) ----------------------
%pi
tan(-----)
10800
(%i14) /* solve for fl ... */
solve(test=6096,fl);
(%o14) []
(%i15) /* what if we give c and r values? */
subst([c=7.176,r=3264],test);
3.588
atan(-----)
fl
6096 tan(-----------)
1632
(%o15) ---------------------
%pi
tan(-----)
10800
(%i16) solve(test=6096,fl);
(%o16) []
(%i17) /* still cant solve!, but I know that there is a solution.. */
subst([c=7.176,r=3264,fl=6.98149293282488],test);
1.773254570041446
(%o17) -----------------
%pi
tan(-----)
10800
(%i18) float(%);
(%o18) 6096.0
(%i19)