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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 ExprTuple, m
from proveit.numbers import Add, Floor, ModAbs, Mult, Neg, subtract
from proveit.physics.quantum.QPE import _phase, _two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Mult(_two_pow_t, _phase)
sub_expr2 = Floor(sub_expr1)
expr = ExprTuple(subtract(ModAbs(subtract(m, sub_expr1), _two_pow_t), ModAbs(subtract(m, sub_expr2), _two_pow_t)), Add(Neg(sub_expr2), sub_expr1))
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|m - \left(2^{t} \cdot \varphi\right)\right|_{\textup{mod}\thinspace 2^{t}} - \left|m - \left\lfloor 2^{t} \cdot \varphi\right\rfloor\right|_{\textup{mod}\thinspace 2^{t}}, -\left\lfloor 2^{t} \cdot \varphi\right\rfloor + \left(2^{t} \cdot \varphi\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: 16
operands: 3
2Operationoperator: 16
operands: 4
3ExprTuple5, 6
4ExprTuple19, 25
5Operationoperator: 12
operands: 7
6Operationoperator: 20
operand: 10
7ExprTuple9, 28
8ExprTuple10
9Operationoperator: 16
operands: 11
10Operationoperator: 12
operands: 13
11ExprTuple18, 14
12Literal
13ExprTuple15, 28
14Operationoperator: 20
operand: 25
15Operationoperator: 16
operands: 17
16Literal
17ExprTuple18, 19
18Variable
19Operationoperator: 20
operand: 22
20Literal
21ExprTuple22
22Operationoperator: 23
operand: 25
23Literal
24ExprTuple25
25Operationoperator: 26
operands: 27
26Literal
27ExprTuple28, 29
28Operationoperator: 30
operands: 31
29Literal
30Literal
31ExprTuple32, 33
32Literal
33Literal