Mixing
How to make a list of variables in Magma(computer algebra system)?
In sagemath, for making a list of variables like $ Z=[z00,z01,z02, ... ,z97,z98,z99] $ we can use this code: sage: Z = list(var('z%i%i' % (i,j)) for i in range(10) for j in range(10))
In Magam, it is easy to make a list like $Z=[[0,0],[0,1],[0,2],...,[9,7],[9,8],[9,9]] $ with this code: > Z := [[i,j]: j in [0..9], i in [0..9]];
, but now I try to make a list in Magma that its elemnts are variables such as $z00$ ,not lists like $[0,0]$. How can I make a list of variables in Magma?
In this regard, I found this useful appendix The Magma Language.
It introduced this code:> printf"z%o%o" , 0, 0; for printing $z00$
, but "z%o%o" , 0, 0; is not work in a list or in a loop such as for.
('z%i%i' % (i,j) is a code that used in each part of sagemath such as a list, but in Magma “z%o%o ”, 0, 0; works only with printf and we cannot use it for making a list in Magma )
math-software sagemath magma-cas
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
asked Nov 21 '18 at 10:35
s.m.h
102
add a comment |
In sagemath, for making a list of variables like $ Z=[z00,z01,z02, ... ,z97,z98,z99] $ we can use this code: sage: Z = list(var('z%i%i' % (i,j)) for i in range(10) for j in range(10))
In Magam, it is easy to make a list like $Z=[[0,0],[0,1],[0,2],...,[9,7],[9,8],[9,9]] $ with this code: > Z := [[i,j]: j in [0..9], i in [0..9]];
, but now I try to make a list in Magma that its elemnts are variables such as $z00$ ,not lists like $[0,0]$. How can I make a list of variables in Magma?
In this regard, I found this useful appendix The Magma Language.
It introduced this code:> printf"z%o%o" , 0, 0; for printing $z00$
, but "z%o%o" , 0, 0; is not work in a list or in a loop such as for.
('z%i%i' % (i,j) is a code that used in each part of sagemath such as a list, but in Magma “z%o%o ”, 0, 0; works only with printf and we cannot use it for making a list in Magma )
math-software sagemath magma-cas
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
asked Nov 21 '18 at 10:35
s.m.h
102
1
What do you want to do with the generated variables?
– Somos
Nov 21 '18 at 13:09
l := [ ]; for i in [1..10] do l[i] := i; end for; l;
– reuns
Nov 21 '18 at 13:32
Thank you so much @Somos, your previous answer was correct. But now I want to make PolynomialRing with this list. For example in sagemath we can use this code:P = PolynomialRing(GF(2), [str(i) for i in Z], order='lex')for making this PolynomialRing with a list like Z. In Magma, how can I make this PolynomialRing with this list?
– s.m.h
Nov 21 '18 at 13:51
1
....R := PolynomialRing(Integers(), #l);then the variables areR.i
– reuns
Nov 21 '18 at 14:45
add a comment |
In sagemath, for making a list of variables like $ Z=[z00,z01,z02, ... ,z97,z98,z99] $ we can use this code: sage: Z = list(var('z%i%i' % (i,j)) for i in range(10) for j in range(10))
In Magam, it is easy to make a list like $Z=[[0,0],[0,1],[0,2],...,[9,7],[9,8],[9,9]] $ with this code: > Z := [[i,j]: j in [0..9], i in [0..9]];
, but now I try to make a list in Magma that its elemnts are variables such as $z00$ ,not lists like $[0,0]$. How can I make a list of variables in Magma?
In this regard, I found this useful appendix The Magma Language.
It introduced this code:> printf"z%o%o" , 0, 0; for printing $z00$
, but "z%o%o" , 0, 0; is not work in a list or in a loop such as for.
('z%i%i' % (i,j) is a code that used in each part of sagemath such as a list, but in Magma “z%o%o ”, 0, 0; works only with printf and we cannot use it for making a list in Magma )
math-software sagemath magma-cas
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
asked Nov 21 '18 at 10:35
s.m.h
102
In sagemath, for making a list of variables like $ Z=[z00,z01,z02, ... ,z97,z98,z99] $ we can use this code: sage: Z = list(var('z%i%i' % (i,j)) for i in range(10) for j in range(10))
In Magam, it is easy to make a list like $Z=[[0,0],[0,1],[0,2],...,[9,7],[9,8],[9,9]] $ with this code: > Z := [[i,j]: j in [0..9], i in [0..9]];
, but now I try to make a list in Magma that its elemnts are variables such as $z00$ ,not lists like $[0,0]$. How can I make a list of variables in Magma?
In this regard, I found this useful appendix The Magma Language.
It introduced this code:> printf"z%o%o" , 0, 0; for printing $z00$
, but "z%o%o" , 0, 0; is not work in a list or in a loop such as for.
('z%i%i' % (i,j) is a code that used in each part of sagemath such as a list, but in Magma “z%o%o ”, 0, 0; works only with printf and we cannot use it for making a list in Magma )
math-software sagemath magma-cas
math-software sagemath magma-cas
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
asked Nov 21 '18 at 10:35
s.m.h
102
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
asked Nov 21 '18 at 10:35
s.m.h
102
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
edited Nov 21 '18 at 14:33
Arnaud D.
15.7k52443
15.7k52443
asked Nov 21 '18 at 10:35
s.m.h
102
asked Nov 21 '18 at 10:35
s.m.h
102
asked Nov 21 '18 at 10:35
s.m.h
102
102
1
What do you want to do with the generated variables?
– Somos
Nov 21 '18 at 13:09
l := [ ]; for i in [1..10] do l[i] := i; end for; l;
– reuns
Nov 21 '18 at 13:32
Thank you so much @Somos, your previous answer was correct. But now I want to make PolynomialRing with this list. For example in sagemath we can use this code:P = PolynomialRing(GF(2), [str(i) for i in Z], order='lex')for making this PolynomialRing with a list like Z. In Magma, how can I make this PolynomialRing with this list?
– s.m.h
Nov 21 '18 at 13:51
1
....R := PolynomialRing(Integers(), #l);then the variables areR.i
– reuns
Nov 21 '18 at 14:45
add a comment |
1
What do you want to do with the generated variables?
– Somos
Nov 21 '18 at 13:09
l := [ ]; for i in [1..10] do l[i] := i; end for; l;
– reuns
Nov 21 '18 at 13:32
Thank you so much @Somos, your previous answer was correct. But now I want to make PolynomialRing with this list. For example in sagemath we can use this code:P = PolynomialRing(GF(2), [str(i) for i in Z], order='lex')for making this PolynomialRing with a list like Z. In Magma, how can I make this PolynomialRing with this list?
– s.m.h
Nov 21 '18 at 13:51
1
....R := PolynomialRing(Integers(), #l);then the variables areR.i
– reuns
Nov 21 '18 at 14:45
1
1
What do you want to do with the generated variables?
– Somos
Nov 21 '18 at 13:09
What do you want to do with the generated variables?
– Somos
Nov 21 '18 at 13:09
l := [ ]; for i in [1..10] do l[i] := i; end for; l;– reuns
Nov 21 '18 at 13:32
l := [ ]; for i in [1..10] do l[i] := i; end for; l;– reuns
Nov 21 '18 at 13:32
Thank you so much @Somos, your previous answer was correct. But now I want to make PolynomialRing with this list. For example in sagemath we can use this code:
P = PolynomialRing(GF(2), [str(i) for i in Z], order='lex') for making this PolynomialRing with a list like Z. In Magma, how can I make this PolynomialRing with this list?– s.m.h
Nov 21 '18 at 13:51
Thank you so much @Somos, your previous answer was correct. But now I want to make PolynomialRing with this list. For example in sagemath we can use this code:
P = PolynomialRing(GF(2), [str(i) for i in Z], order='lex') for making this PolynomialRing with a list like Z. In Magma, how can I make this PolynomialRing with this list?– s.m.h
Nov 21 '18 at 13:51
1
1
....
R := PolynomialRing(Integers(), #l); then the variables are R.i– reuns
Nov 21 '18 at 14:45
....
R := PolynomialRing(Integers(), #l); then the variables are R.i– reuns
Nov 21 '18 at 14:45
add a comment |
1 Answer
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Try this as an example of what can be done.
v := ["z" * IntegerToString(i) : i in [0..3] ];
Z := IntegerRing();
S := PolynomialRing(Z, 4);
AssignNames(~S, v);
p := S.1 + 2*S.2^2 + 3*S.3^3 + 4*S.4^4;
p;
answered Nov 21 '18 at 12:27
Somos
13k11034
add a comment |
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1 Answer
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Try this as an example of what can be done.
v := ["z" * IntegerToString(i) : i in [0..3] ];
Z := IntegerRing();
S := PolynomialRing(Z, 4);
AssignNames(~S, v);
p := S.1 + 2*S.2^2 + 3*S.3^3 + 4*S.4^4;
p;
answered Nov 21 '18 at 12:27
Somos
13k11034
add a comment |
Try this as an example of what can be done.
v := ["z" * IntegerToString(i) : i in [0..3] ];
Z := IntegerRing();
S := PolynomialRing(Z, 4);
AssignNames(~S, v);
p := S.1 + 2*S.2^2 + 3*S.3^3 + 4*S.4^4;
p;
answered Nov 21 '18 at 12:27
Somos
13k11034
add a comment |
Try this as an example of what can be done.
v := ["z" * IntegerToString(i) : i in [0..3] ];
Z := IntegerRing();
S := PolynomialRing(Z, 4);
AssignNames(~S, v);
p := S.1 + 2*S.2^2 + 3*S.3^3 + 4*S.4^4;
p;
answered Nov 21 '18 at 12:27
Somos
13k11034
Try this as an example of what can be done.
v := ["z" * IntegerToString(i) : i in [0..3] ];
Z := IntegerRing();
S := PolynomialRing(Z, 4);
AssignNames(~S, v);
p := S.1 + 2*S.2^2 + 3*S.3^3 + 4*S.4^4;
p;
answered Nov 21 '18 at 12:27
Somos
13k11034
edited Nov 21 '18 at 15:33
answered Nov 21 '18 at 12:27
Somos
13k11034
answered Nov 21 '18 at 12:27
Somos
13k11034
answered Nov 21 '18 at 12:27
Somos
13k11034
13k11034
add a comment |
add a comment |
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1
What do you want to do with the generated variables?
– Somos
Nov 21 '18 at 13:09
l := [ ]; for i in [1..10] do l[i] := i; end for; l;– reuns
Nov 21 '18 at 13:32
Thank you so much @Somos, your previous answer was correct. But now I want to make PolynomialRing with this list. For example in sagemath we can use this code:
P = PolynomialRing(GF(2), [str(i) for i in Z], order='lex')for making this PolynomialRing with a list like Z. In Magma, how can I make this PolynomialRing with this list?– s.m.h
Nov 21 '18 at 13:51
1
....
R := PolynomialRing(Integers(), #l);then the variables areR.i– reuns
Nov 21 '18 at 14:45