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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, frac, i, pi, two
from proveit.physics.quantum.QPE import _b_floor, _delta_b_floor, _two_pow_t
In [2]:
# build up the expression from sub-expressions
expr = Exp(e, Mult(two, pi, i, Add(frac(_b_floor, _two_pow_t), _delta_b_floor, Neg(frac(Add(_b_floor, l), _two_pow_t)))))
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(\frac{b_{\textit{f}}}{2^{t}} + \delta_{b_{\textit{f}}} - \frac{b_{\textit{f}} + l}{2^{t}}\right)}
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 25
operands: 1
1ExprTuple2, 3
2Literal
3Operationoperator: 4
operands: 5
4Literal
5ExprTuple29, 6, 7, 8
6Literal
7Literal
8Operationoperator: 23
operands: 9
9ExprTuple10, 11, 12
10Operationoperator: 19
operands: 13
11Operationoperator: 14
operand: 27
12Operationoperator: 16
operand: 18
13ExprTuple27, 22
14Literal
15ExprTuple27
16Literal
17ExprTuple18
18Operationoperator: 19
operands: 20
19Literal
20ExprTuple21, 22
21Operationoperator: 23
operands: 24
22Operationoperator: 25
operands: 26
23Literal
24ExprTuple27, 28
25Literal
26ExprTuple29, 30
27Literal
28Variable
29Literal
30Literal