logo

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, x, y
from proveit.linear_algebra import ScalarMult, TensorProd
from proveit.numbers import Add, Exp, four, one, subtract, three, two
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(ScalarMult(Add(subtract(four, two), one), TensorProd(ScalarMult(beta, x), ScalarMult(beta, y))), ScalarMult(three, ScalarMult(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(\left(\left(4 - 2\right) + 1\right) \cdot \left(\left(\beta \cdot x\right) {\otimes} \left(\beta \cdot y\right)\right), 3 \cdot \left(\beta^{2} \cdot \left(x {\otimes} y\right)\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: 21
operands: 3
2Operationoperator: 21
operands: 4
3ExprTuple5, 6
4ExprTuple7, 8
5Operationoperator: 18
operands: 9
6Operationoperator: 25
operands: 10
7Literal
8Operationoperator: 21
operands: 11
9ExprTuple12, 13
10ExprTuple14, 15
11ExprTuple16, 17
12Operationoperator: 18
operands: 19
13Literal
14Operationoperator: 21
operands: 20
15Operationoperator: 21
operands: 22
16Operationoperator: 23
operands: 24
17Operationoperator: 25
operands: 26
18Literal
19ExprTuple27, 28
20ExprTuple29, 30
21Literal
22ExprTuple29, 31
23Literal
24ExprTuple29, 34
25Literal
26ExprTuple30, 31
27Literal
28Operationoperator: 32
operand: 34
29Variable
30Variable
31Variable
32Literal
33ExprTuple34
34Literal