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Expression of type ExprTuple

from the theory of proveit.linear_algebra.tensors

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, beta, i, x, y
from proveit.linear_algebra import ScalarMult, TensorProd, VecSum
from proveit.numbers import Exp, Interval, Mult, four, three, two
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(VecSum(index_or_indices = [i], summand = TensorProd(ScalarMult(beta, x), ScalarMult(beta, y)), domain = Interval(two, four)), ScalarMult(Mult(three, Exp(beta, two)), TensorProd(x, y)))
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(\sum_{i=2}^{4} \left(\left(\beta \cdot x\right) {\otimes} \left(\beta \cdot y\right)\right), \left(3 \cdot \beta^{2}\right) \cdot \left(x {\otimes} y\right)\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
operand: 6
2Operationoperator: 29
operands: 5
3Literal
4ExprTuple6
5ExprTuple7, 8
6Lambdaparameter: 26
body: 10
7Operationoperator: 11
operands: 12
8Operationoperator: 18
operands: 13
9ExprTuple26
10Conditionalvalue: 14
condition: 15
11Literal
12ExprTuple16, 17
13ExprTuple33, 35
14Operationoperator: 18
operands: 19
15Operationoperator: 20
operands: 21
16Literal
17Operationoperator: 22
operands: 23
18Literal
19ExprTuple24, 25
20Literal
21ExprTuple26, 27
22Literal
23ExprTuple34, 36
24Operationoperator: 29
operands: 28
25Operationoperator: 29
operands: 30
26Variable
27Operationoperator: 31
operands: 32
28ExprTuple34, 33
29Literal
30ExprTuple34, 35
31Literal
32ExprTuple36, 37
33Variable
34Variable
35Variable
36Literal
37Literal