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Expression of type Mult

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 l
from proveit.numbers import Abs, Exp, Mult, Neg, one, subtract, two
from proveit.physics.quantum.QPE import _delta_b_floor, _t, _two_pow_t
In [2]:
# build up the expression from sub-expressions
expr = Mult(one, Exp(Mult(two, _two_pow_t, Abs(subtract(_delta_b_floor, Mult(l, Exp(two, Neg(_t)))))), Neg(one)))
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())
1 \cdot \left(2 \cdot 2^{t} \cdot \left|\delta_{b_{\textit{f}}} - \left(l \cdot 2^{-t}\right)\right|\right)^{-1}
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
operation'infix' or 'function' style formattinginfixinfix
wrap_positionsposition(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.()()('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'centercenter('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 24
operands: 1
1ExprTuple10, 2
2Operationoperator: 28
operands: 3
3ExprTuple4, 5
4Operationoperator: 24
operands: 6
5Operationoperator: 32
operand: 10
6ExprTuple30, 8, 9
7ExprTuple10
8Operationoperator: 28
operands: 11
9Operationoperator: 12
operand: 14
10Literal
11ExprTuple30, 34
12Literal
13ExprTuple14
14Operationoperator: 15
operands: 16
15Literal
16ExprTuple17, 18
17Operationoperator: 19
operand: 22
18Operationoperator: 32
operand: 23
19Literal
20ExprTuple22
21ExprTuple23
22Literal
23Operationoperator: 24
operands: 25
24Literal
25ExprTuple26, 27
26Variable
27Operationoperator: 28
operands: 29
28Literal
29ExprTuple30, 31
30Literal
31Operationoperator: 32
operand: 34
32Literal
33ExprTuple34
34Literal