logo

Expression of type ExprTuple

from the theory of proveit.physics.quantum.algebra

In [1]:
import proveit
# Automation is not needed when building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import Expression classes needed to build the expression
from proveit import ExprRange, ExprTuple, Function, IndexedVar, Q, Variable, alpha, beta, c, f, j, m
from proveit.linear_algebra import LinMap, VecSum
from proveit.logic import CartExp
from proveit.numbers import Complex, one
from proveit.physics.quantum import Qmult, bra_varphi
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = [ExprRange(sub_expr1, IndexedVar(c, sub_expr1), one, j)]
expr = ExprTuple(Qmult(Qmult(bra_varphi, alpha, VecSum(index_or_indices = sub_expr2, summand = Function(f, sub_expr2), condition = Function(Q, sub_expr2)), beta)), LinMap(CartExp(Complex, m), Complex))
expr:
In [3]:
# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")
Passed sanity check: expr matches stored_expr
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\left(\left[\langle \varphi \rvert \thinspace \alpha \thinspace \left[\sum_{c_{1}, c_{2}, \ldots, c_{j}~|~Q\left(c_{1}, c_{2}, \ldots, c_{j}\right)}~f\left(c_{1}, c_{2}, \ldots, c_{j}\right)\right] \thinspace \beta\right], \mathcal{L}\left(\mathbb{C}^{m}, \mathbb{C}\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 8
operand: 6
2Operationoperator: 4
operands: 5
3ExprTuple6
4Literal
5ExprTuple7, 16
6Operationoperator: 8
operands: 9
7Operationoperator: 10
operands: 11
8Literal
9ExprTuple12, 13, 14, 15
10Literal
11ExprTuple16, 17
12Operationoperator: 18
operand: 22
13Variable
14Operationoperator: 20
operand: 23
15Variable
16Literal
17Variable
18Literal
19ExprTuple22
20Literal
21ExprTuple23
22Variable
23Lambdaparameters: 29
body: 24
24Conditionalvalue: 25
condition: 26
25Operationoperator: 27
operands: 29
26Operationoperator: 28
operands: 29
27Variable
28Variable
29ExprTuple30
30ExprRangelambda_map: 31
start_index: 32
end_index: 33
31Lambdaparameter: 37
body: 34
32Literal
33Variable
34IndexedVarvariable: 35
index: 37
35Variable
36ExprTuple37
37Variable