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Expression of type Equals

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.logic import Equals
from proveit.numbers import Abs, Exp, Mult, e, frac, i, one, pi, subtract, two
from proveit.physics.quantum.QPE import _delta_b_round, _two_pow_t
from proveit.trigonometry import Sin
In [2]:
# build up the expression from sub-expressions
sub_expr1 = frac(one, _two_pow_t)
sub_expr2 = Abs(_delta_b_round)
expr = Equals(Abs(Mult(sub_expr1, frac(subtract(one, Exp(e, Mult(two, pi, i, _delta_b_round, _two_pow_t))), subtract(one, Exp(e, Mult(two, pi, i, _delta_b_round)))))), Mult(sub_expr1, frac(Sin(Mult(_two_pow_t, pi, sub_expr2)), Sin(Mult(pi, sub_expr2)))))
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|\frac{1}{2^{t}} \cdot \frac{1 - \mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \delta_{b_{\textit{r}}} \cdot 2^{t}}}{1 - \mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \delta_{b_{\textit{r}}}}}\right| = \left(\frac{1}{2^{t}} \cdot \frac{\sin{\left(2^{t} \cdot \pi \cdot \left|\delta_{b_{\textit{r}}}\right|\right)}}{\sin{\left(\pi \cdot \left|\delta_{b_{\textit{r}}}\right|\right)}}\right)
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',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 37
operand: 7
4Operationoperator: 47
operands: 6
5ExprTuple7
6ExprTuple11, 8
7Operationoperator: 47
operands: 9
8Operationoperator: 16
operands: 10
9ExprTuple11, 12
10ExprTuple13, 14
11Operationoperator: 16
operands: 15
12Operationoperator: 16
operands: 17
13Operationoperator: 19
operand: 23
14Operationoperator: 19
operand: 24
15ExprTuple31, 49
16Literal
17ExprTuple21, 22
18ExprTuple23
19Literal
20ExprTuple24
21Operationoperator: 26
operands: 25
22Operationoperator: 26
operands: 27
23Operationoperator: 47
operands: 28
24Operationoperator: 47
operands: 29
25ExprTuple31, 30
26Literal
27ExprTuple31, 32
28ExprTuple49, 50, 33
29ExprTuple50, 33
30Operationoperator: 35
operand: 39
31Literal
32Operationoperator: 35
operand: 40
33Operationoperator: 37
operand: 52
34ExprTuple39
35Literal
36ExprTuple40
37Literal
38ExprTuple52
39Operationoperator: 53
operands: 41
40Operationoperator: 53
operands: 42
41ExprTuple44, 43
42ExprTuple44, 45
43Operationoperator: 47
operands: 46
44Literal
45Operationoperator: 47
operands: 48
46ExprTuple57, 50, 51, 52, 49
47Literal
48ExprTuple57, 50, 51, 52
49Operationoperator: 53
operands: 54
50Literal
51Literal
52Operationoperator: 55
operand: 59
53Literal
54ExprTuple57, 58
55Literal
56ExprTuple59
57Literal
58Literal
59Literal