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Appendix
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.. _section-precedence:
Arithmetical binary operator precedence
=======================================
What is ``3^2*4 + 2%5``? The value (38) is determined by this
"operator precedence table". The table below is based on the table
in ยง 5.14 of the *Python Language Reference Manual* by G. Rossum
and F. Drake. the operations are listed here in increasing order of
precedence.
========================== =================
Operators Description
========================== =================
or boolean or
and boolean and
not boolean not
in, not in membership
is, is not identity test
>, <=, >, >=, ==, != comparison
+, - addition, subtraction
\*, /, % multiplication, division, remainder
\*\*, ^ exponentiation
========================== =================
Therefore, to compute ``3^2*4 + 2%5``, Sage brackets the
computation this way: ``((3^2)*4) + (2%5)``. Thus, first compute
``3^2``, which is ``9``, then compute both ``(3^2)*4`` and ``2%5``,
and finally add these.