[Maxima-discuss] Problem with bfloat

[couraud <l.c...@gm...>]

Hi everyone,

 

 

It seems there is a problem when I try to solve this:

 

eq :
(400099987013675381332258793266100212757877348865572395547868673444799488095
5893635730834603909005391274797631516180749919175073156505741219342752612513
9943062483732353369059902143126883533765447106960495457745029916237144786993
152

 *r6^4

 
-635169949538565681576982326160549436240883584439338432673525994990913080807
9502608605649463006744118010506365410372078424922565514273721530399556185069
4536691922119800765043952479301200067938845077085523967714959372759043100513
4028800

  *r6^3

 
+377358294448778745583055149280325938821134900815134080413155213818809381538
5623045926247772506066538790464420557034914421623994643207226503772289573557
4746770514637506165721077202702808030741639574712238081225104648285021754007
48646400000

  *r6^2

 
-994827962362789386985928920959408041604180841307656030461241481458711871699
1627738173731600116720301970551077968613578942034278006729503574412645544866
2299286973331692985051776142386278947698580925838624655188543051738657008016
94924800000000

  *r6

 
+982292276311002270931173985237493254470108298967760469537118227582552304036
5218991617759102209164976234430910614344753842949200199390345412495844846726
1547191777272062929190479200745823489671558337870426293270315863437665782915
39968000000000000)

 /582076609134674072265625$

 

trace(bfloat)$

 

solve(eq, r6);

1 Enter bfloat [0.0 + 1..#INF00e+000E+2678440]

 2 Enter bfloat [0.0]

 2 Exit  bfloat 0.0b0

 2 Enter bfloat [1..#INF00e+000E+69]

bfloat: attempted conversion of floating-point infinity.

 -- an error. To debug this try: debugmode(true);