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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, y
from proveit.linear_algebra import ScalarMult, VecSum
from proveit.numbers import Interval, four, two
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(ScalarMult(beta, VecSum(index_or_indices = [i], summand = y, domain = Interval(two, four))))
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(\beta \cdot \left(\sum_{i=2}^{4} y\right)\right)
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1
1Operationoperator: 2
operands: 3
2Literal
3ExprTuple4, 5
4Variable
5Operationoperator: 6
operand: 8
6Literal
7ExprTuple8
8Lambdaparameter: 15
body: 10
9ExprTuple15
10Conditionalvalue: 11
condition: 12
11Variable
12Operationoperator: 13
operands: 14
13Literal
14ExprTuple15, 16
15Variable
16Operationoperator: 17
operands: 18
17Literal
18ExprTuple19, 20
19Literal
20Literal