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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, fi, gamma, x, y, z
from proveit.linear_algebra import ScalarMult, TensorProd
In [2]:
# build up the expression from sub-expressions
sub_expr1 = ScalarMult(gamma, TensorProd(x, y, fi, z))
expr = ExprTuple(sub_expr1, sub_expr1)
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(\gamma \cdot \left(x {\otimes} y {\otimes} f\left(i\right) {\otimes} z\right), \gamma \cdot \left(x {\otimes} y {\otimes} f\left(i\right) {\otimes} z\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, 1
1Operationoperator: 2
operands: 3
2Literal
3ExprTuple4, 5
4Variable
5Operationoperator: 6
operands: 7
6Literal
7ExprTuple8, 9, 10, 11
8Variable
9Variable
10Operationoperator: 12
operand: 14
11Variable
12Variable
13ExprTuple14
14Variable