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Expression of type Exp

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 Add, Exp, Mult, Neg, e, i, pi, two
from proveit.physics.quantum.QPE import _delta_b_floor, _t
In [2]:
# build up the expression from sub-expressions
expr = Exp(e, Mult(two, pi, i, Add(Neg(Mult(l, Exp(two, Neg(_t)))), _delta_b_floor)))
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())
\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \left(-\left(l \cdot 2^{-t}\right) + \delta_{b_{\textit{f}}}\right)}
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 21
operands: 1
1ExprTuple2, 3
2Literal
3Operationoperator: 17
operands: 4
4ExprTuple23, 5, 6, 7
5Literal
6Literal
7Operationoperator: 8
operands: 9
8Literal
9ExprTuple10, 11
10Operationoperator: 25
operand: 15
11Operationoperator: 13
operand: 16
12ExprTuple15
13Literal
14ExprTuple16
15Operationoperator: 17
operands: 18
16Literal
17Literal
18ExprTuple19, 20
19Variable
20Operationoperator: 21
operands: 22
21Literal
22ExprTuple23, 24
23Literal
24Operationoperator: 25
operand: 27
25Literal
26ExprTuple27
27Literal