Most answered questions

+1 vote

1 answer

derivatives with two indices

asked Jan 18 in General questions by bduboeuf (130 points)

+1 vote

1 answer

How do I use object properties in a python executable?

asked Jan 6 in General questions by tvb (140 points)

0 votes

1 answer

evaluate() returns RuntimeError when using the explicit value of an index

asked Jan 4 in General questions by gpn (2.0k points)

+1 vote

1 answer

Simplification of sum of terms r a^m + s a^m to (r+s)a^m

asked Jan 1 in General questions by Eric (130 points)

+1 vote

1 answer

Display "hand-made" latex

asked Dec 29, 2023 in General questions by gpn (2.0k points)

+1 vote

1 answer

Replacing expressions in a matrix

asked Dec 27, 2023 in General questions by gpn (2.0k points)

+1 vote

1 answer

Displaying a matrix with matplotlib error "non-GUI backend"

asked Dec 25, 2023 in General questions by gpn (2.0k points)

+1 vote

1 answer

Displaying components of the epsilon matrix

asked Dec 24, 2023 in General questions by gpn (2.0k points)

+1 vote

1 answer

LaTeXForm expansion fails with "free indices do not match"

asked Dec 22, 2023 in General questions by gpn (2.0k points)

+2 votes

1 answer

Partial derivative of a vector

asked Dec 6, 2023 in General questions by annamalai (180 points)

+1 vote

1 answer

Trigonometric and hyperbolic functions

asked Nov 29, 2023 in General questions by Arina (1.6k points)

+1 vote

1 answer

meld returns zero where it shouldn't?

asked Feb 5 in Bug reports by dbutter (1.0k points)

+1 vote

1 answer

Operations with fractional powers of negative numbers

asked Jan 16 in Bug reports by Arina (1.6k points)

+1 vote

1 answer

Interaction between 'canonicalise' and vector spinors

asked Jan 11 in Bug reports by Lactose (140 points)

0 votes

1 answer

remove_zero_components and components_to_subrule fail with AttributeError

asked Jan 8 in Bug reports by gpn (2.0k points)

+1 vote

1 answer

Negative powers of 0

asked Dec 12, 2023 in Bug reports by Arina (1.6k points)

+1 vote

1 answer

meld sets to zero when it shouldn't?

asked Dec 5, 2023 in Bug reports by gpn (2.0k points)

+1 vote

1 answer

Manually fiddling with multiplier on \sum

asked Dec 1, 2023 in Bug reports by dbutter (1.0k points)

+1 vote

1 answer

WeightInherit type=additive thinks operator is \sum

asked Nov 29, 2023 in Bug reports by dbutter (1.0k points)

+1 vote

1 answer

substitute crashes with empty replacement rule

asked Nov 26, 2023 in Bug reports by dbutter (1.0k points)

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