logo

Expression of type ExprTuple

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 ExprTuple
from proveit.numbers import Add, Floor, Mult, Neg, frac, one, subtract, two
from proveit.physics.quantum.QPE import _phase, _two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = frac(one, two)
sub_expr2 = Mult(_two_pow_t, _phase)
expr = ExprTuple(Neg(sub_expr1), subtract(sub_expr2, Floor(Add(sub_expr2, sub_expr1))))
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}, \left(2^{t} \cdot \varphi\right) - \left\lfloor \left(2^{t} \cdot \varphi\right) + \frac{1}{2}\right\rfloor\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 6
operand: 15
2Operationoperator: 12
operands: 4
3ExprTuple15
4ExprTuple14, 5
5Operationoperator: 6
operand: 8
6Literal
7ExprTuple8
8Operationoperator: 9
operand: 11
9Literal
10ExprTuple11
11Operationoperator: 12
operands: 13
12Literal
13ExprTuple14, 15
14Operationoperator: 16
operands: 17
15Operationoperator: 18
operands: 19
16Literal
17ExprTuple20, 21
18Literal
19ExprTuple22, 25
20Operationoperator: 23
operands: 24
21Literal
22Literal
23Literal
24ExprTuple25, 26
25Literal
26Literal