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Expression of type Div

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 Exp, Mult, frac, one, subtract, two
from proveit.physics.quantum.QPE import _n, _t
In [2]:
# build up the expression from sub-expressions
expr = frac(one, Mult(two, subtract(Exp(two, subtract(_t, _n)), one)))
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())
\frac{1}{2 \cdot \left(2^{t - n} - 1\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',)
division'inline': uses '/'; 'fraction': numerator over the denominator (also see 'frac' function)fractionfraction('with_inline_style', 'with_fraction_style')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple15, 3
3Operationoperator: 4
operands: 5
4Literal
5ExprTuple13, 6
6Operationoperator: 16
operands: 7
7ExprTuple8, 9
8Operationoperator: 10
operands: 11
9Operationoperator: 20
operand: 15
10Literal
11ExprTuple13, 14
12ExprTuple15
13Literal
14Operationoperator: 16
operands: 17
15Literal
16Literal
17ExprTuple18, 19
18Literal
19Operationoperator: 20
operand: 22
20Literal
21ExprTuple22
22Literal