Difference between revisions of "Variable substitution - PGML"
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Revision as of 15:27, 10 May 2015
Variable Substitution
Frequently, you will have computed or randomly generated values that you want to include in the text of your problem. To insert the value of a $a
into PGML, use [$a]
. Such values can be inserted into the text anywhere, including inside math delimiters.
Suppose a manufacturer produces [$n] cars at a cost of [$cost] per car.
or
Suppose [`f(x) = [$f]`]. Then [`f'(x) = `] [_________________].
or
Suppose [: f(x) = [$f] :]. Then [: f'(x) = :] [_________________].
In the first example, the values of $a
and $cost
are inserted as plain text. In the second, example, if $f
is a MathObject Formula, then its TeX form will be inserted and processed as TeX code (due to the [`...`]
delimiters. In the third example, the Formula object's algebra string will be inserted into the math and processed in the Typeset Context to generate the mathematical output.