logo

Expression of type ExprTuple

from the theory of proveit.physics.quantum.QPE

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, Variable, l
from proveit.core_expr_types import Len
from proveit.numbers import Exp, Mult, Neg, one, pi, subtract, three, two
from proveit.physics.quantum.QPE import _delta_b_floor, _t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple(Len(operands = [pi, subtract(_delta_b_floor, Mult(l, Exp(two, Neg(_t)))), Exp(pi, Neg(one))]), Len(operands = [ExprRange(sub_expr1, sub_expr1, one, three)]))
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(\pi, \delta_{b_{\textit{f}}} - \left(l \cdot 2^{-t}\right), \pi^{-1}\right)|, |\left(1, 2, \ldots, 3\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: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple16, 6, 7
4Literal
5ExprTuple8
6Operationoperator: 9
operands: 10
7Operationoperator: 31
operands: 11
8ExprRangelambda_map: 12
start_index: 26
end_index: 13
9Literal
10ExprTuple14, 15
11ExprTuple16, 17
12Lambdaparameter: 23
body: 23
13Literal
14Operationoperator: 19
operand: 24
15Operationoperator: 35
operand: 25
16Literal
17Operationoperator: 35
operand: 26
18ExprTuple23
19Literal
20ExprTuple24
21ExprTuple25
22ExprTuple26
23Variable
24Literal
25Operationoperator: 27
operands: 28
26Literal
27Literal
28ExprTuple29, 30
29Variable
30Operationoperator: 31
operands: 32
31Literal
32ExprTuple33, 34
33Literal
34Operationoperator: 35
operand: 37
35Literal
36ExprTuple37
37Literal