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Expression of type Neg

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.numbers import Add, Exp, Neg, frac, one, two
from proveit.physics.quantum.QPE import _eps
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Add(two, frac(one, _eps))
sub_expr2 = Exp(sub_expr1, two)
expr = Neg(Add(frac(sub_expr1, sub_expr2), frac(one, 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{2 + \frac{1}{\epsilon}}{\left(2 + \frac{1}{\epsilon}\right)^{2}} + \frac{1}{\left(2 + \frac{1}{\epsilon}\right)^{2}}\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
operation'infix' or 'function' style formattinginfixinfix
notation_in_addWhen contained in an Add, use 'subtraction' or 'explicit_negation': For example, 'a - b' versus 'a + (-b)'.subtractionsubtraction('with_subtraction_notation', 'without_subtraction_notation')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operand: 3
1Literal
2ExprTuple3
3Operationoperator: 13
operands: 4
4ExprTuple5, 6
5Operationoperator: 17
operands: 7
6Operationoperator: 17
operands: 8
7ExprTuple12, 9
8ExprTuple19, 9
9Operationoperator: 10
operands: 11
10Literal
11ExprTuple12, 15
12Operationoperator: 13
operands: 14
13Literal
14ExprTuple15, 16
15Literal
16Operationoperator: 17
operands: 18
17Literal
18ExprTuple19, 20
19Literal
20Literal