Help with parameters when computing volume
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I have just started computing volume of objects confined by planes using Fubini and substitution and I have come across a problem that I can't figure out what new parameter to choose.
the planes are:
$z=xy$
$z=0$
$x+y+z=1$
Could you please help me?
substitution
$endgroup$
add a comment |
$begingroup$
I have just started computing volume of objects confined by planes using Fubini and substitution and I have come across a problem that I can't figure out what new parameter to choose.
the planes are:
$z=xy$
$z=0$
$x+y+z=1$
Could you please help me?
substitution
$endgroup$
$begingroup$
It is not clear to me what you mean by "new parameter to choose". Can you please elaborate? Thx
$endgroup$
– pendermath
Jan 6 at 23:02
$begingroup$
Also, can you be more specific about your problem and what approach have you taken?
$endgroup$
– pendermath
Jan 6 at 23:03
$begingroup$
I don't know how to say it in english. By I want to compute the integral dxdydz so for that I need to find a substitution that will give me better parameters to use in the Fubini. For example if the object that is given by the three planes is something cylindrical I would use cylindrical parameters as symetry usually helps :D I dunno how to explain it
$endgroup$
– Zuzana Mitterová
Jan 6 at 23:55
$begingroup$
The points $(x,y,z)$ that satisfy $z=xy$ do not form a plane. Do you have a copy of the original problem?
$endgroup$
– John Douma
Jan 7 at 0:26
$begingroup$
Yes they do, in 3D. It's a curved plane. Or maybe plane is not a good name for it, sorry for my english.
$endgroup$
– Zuzana Mitterová
Jan 7 at 10:33
add a comment |
$begingroup$
I have just started computing volume of objects confined by planes using Fubini and substitution and I have come across a problem that I can't figure out what new parameter to choose.
the planes are:
$z=xy$
$z=0$
$x+y+z=1$
Could you please help me?
substitution
$endgroup$
I have just started computing volume of objects confined by planes using Fubini and substitution and I have come across a problem that I can't figure out what new parameter to choose.
the planes are:
$z=xy$
$z=0$
$x+y+z=1$
Could you please help me?
substitution
substitution
edited Jan 6 at 23:10
Gnumbertester
425111
425111
asked Jan 6 at 22:56
Zuzana MitterováZuzana Mitterová
496
496
$begingroup$
It is not clear to me what you mean by "new parameter to choose". Can you please elaborate? Thx
$endgroup$
– pendermath
Jan 6 at 23:02
$begingroup$
Also, can you be more specific about your problem and what approach have you taken?
$endgroup$
– pendermath
Jan 6 at 23:03
$begingroup$
I don't know how to say it in english. By I want to compute the integral dxdydz so for that I need to find a substitution that will give me better parameters to use in the Fubini. For example if the object that is given by the three planes is something cylindrical I would use cylindrical parameters as symetry usually helps :D I dunno how to explain it
$endgroup$
– Zuzana Mitterová
Jan 6 at 23:55
$begingroup$
The points $(x,y,z)$ that satisfy $z=xy$ do not form a plane. Do you have a copy of the original problem?
$endgroup$
– John Douma
Jan 7 at 0:26
$begingroup$
Yes they do, in 3D. It's a curved plane. Or maybe plane is not a good name for it, sorry for my english.
$endgroup$
– Zuzana Mitterová
Jan 7 at 10:33
add a comment |
$begingroup$
It is not clear to me what you mean by "new parameter to choose". Can you please elaborate? Thx
$endgroup$
– pendermath
Jan 6 at 23:02
$begingroup$
Also, can you be more specific about your problem and what approach have you taken?
$endgroup$
– pendermath
Jan 6 at 23:03
$begingroup$
I don't know how to say it in english. By I want to compute the integral dxdydz so for that I need to find a substitution that will give me better parameters to use in the Fubini. For example if the object that is given by the three planes is something cylindrical I would use cylindrical parameters as symetry usually helps :D I dunno how to explain it
$endgroup$
– Zuzana Mitterová
Jan 6 at 23:55
$begingroup$
The points $(x,y,z)$ that satisfy $z=xy$ do not form a plane. Do you have a copy of the original problem?
$endgroup$
– John Douma
Jan 7 at 0:26
$begingroup$
Yes they do, in 3D. It's a curved plane. Or maybe plane is not a good name for it, sorry for my english.
$endgroup$
– Zuzana Mitterová
Jan 7 at 10:33
$begingroup$
It is not clear to me what you mean by "new parameter to choose". Can you please elaborate? Thx
$endgroup$
– pendermath
Jan 6 at 23:02
$begingroup$
It is not clear to me what you mean by "new parameter to choose". Can you please elaborate? Thx
$endgroup$
– pendermath
Jan 6 at 23:02
$begingroup$
Also, can you be more specific about your problem and what approach have you taken?
$endgroup$
– pendermath
Jan 6 at 23:03
$begingroup$
Also, can you be more specific about your problem and what approach have you taken?
$endgroup$
– pendermath
Jan 6 at 23:03
$begingroup$
I don't know how to say it in english. By I want to compute the integral dxdydz so for that I need to find a substitution that will give me better parameters to use in the Fubini. For example if the object that is given by the three planes is something cylindrical I would use cylindrical parameters as symetry usually helps :D I dunno how to explain it
$endgroup$
– Zuzana Mitterová
Jan 6 at 23:55
$begingroup$
I don't know how to say it in english. By I want to compute the integral dxdydz so for that I need to find a substitution that will give me better parameters to use in the Fubini. For example if the object that is given by the three planes is something cylindrical I would use cylindrical parameters as symetry usually helps :D I dunno how to explain it
$endgroup$
– Zuzana Mitterová
Jan 6 at 23:55
$begingroup$
The points $(x,y,z)$ that satisfy $z=xy$ do not form a plane. Do you have a copy of the original problem?
$endgroup$
– John Douma
Jan 7 at 0:26
$begingroup$
The points $(x,y,z)$ that satisfy $z=xy$ do not form a plane. Do you have a copy of the original problem?
$endgroup$
– John Douma
Jan 7 at 0:26
$begingroup$
Yes they do, in 3D. It's a curved plane. Or maybe plane is not a good name for it, sorry for my english.
$endgroup$
– Zuzana Mitterová
Jan 7 at 10:33
$begingroup$
Yes they do, in 3D. It's a curved plane. Or maybe plane is not a good name for it, sorry for my english.
$endgroup$
– Zuzana Mitterová
Jan 7 at 10:33
add a comment |
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$begingroup$
It is not clear to me what you mean by "new parameter to choose". Can you please elaborate? Thx
$endgroup$
– pendermath
Jan 6 at 23:02
$begingroup$
Also, can you be more specific about your problem and what approach have you taken?
$endgroup$
– pendermath
Jan 6 at 23:03
$begingroup$
I don't know how to say it in english. By I want to compute the integral dxdydz so for that I need to find a substitution that will give me better parameters to use in the Fubini. For example if the object that is given by the three planes is something cylindrical I would use cylindrical parameters as symetry usually helps :D I dunno how to explain it
$endgroup$
– Zuzana Mitterová
Jan 6 at 23:55
$begingroup$
The points $(x,y,z)$ that satisfy $z=xy$ do not form a plane. Do you have a copy of the original problem?
$endgroup$
– John Douma
Jan 7 at 0:26
$begingroup$
Yes they do, in 3D. It's a curved plane. Or maybe plane is not a good name for it, sorry for my english.
$endgroup$
– Zuzana Mitterová
Jan 7 at 10:33