Collapse
Project description
Collapsing Cosmology Research Utilities
The collapse package contains utilities for computing symbolic and numerical expressions related to the time evolution
of collapsing cosmologies.
Symbolic Tools
The collapse package makes use of sympy to compute symbolic curvature equations (EFE).
Specific Details
Example Computation: FLRW Cosmology
# Load the predefined FLRW metric
from collapse.symbolic import metric, gravity, utilities
flrw = metric.flrw().subs({'c': 1})
flrw
efe_00 = utilities.clean_expr(gravity.einstein_equation(0, 0, flrw))
efe_00
# Can simplify notation using "dots"
metric.simplify_deriv_notation(efe_00, flrw, use_dots=True)
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