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.linear_algebra import MatrixMult, ScalarMult
from proveit.numbers import Exp, Mult, e, i, pi, two
from proveit.physics.quantum.QPE import _U, _ket_u, _phase
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(MatrixMult(_U, _ket_u), ScalarMult(Exp(e, Mult(two, pi, i, _phase)), _ket_u))
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(U \thinspace \lvert u \rangle, \mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi} \cdot \lvert u \rangle\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: 3
operands: 4
2Operationoperator: 5
operands: 6
3Literal
4ExprTuple7, 9
5Literal
6ExprTuple8, 9
7Literal
8Operationoperator: 10
operands: 11
9Literal
10Literal
11ExprTuple12, 13
12Literal
13Operationoperator: 14
operands: 15
14Literal
15ExprTuple16, 17, 18, 19
16Literal
17Literal
18Literal
19Literal