The MathML Acid1 test (description)
The MathML Acid1 test contains 7 mathematical expressions that should
render more or less as follows:
The basic requirements to pass the tests are:
- In general, text is layout linearly from left to right
with normal style (i.e. not italic), modulo the exception below.
- All characters should be displayed properly, including
greek, fraktur and script letters (a Web font is provided to avoid
potential missing font support).
- In test 1, "16" should be rendered as a subscript.
- In test 2, 4 and 7, "old" should be rendered as an underscript.
- In test 6 and 7 "sing to me," should be rendered as an overscript.
- In test 7 "bar" should be rendered as an overscript.
- In test 4, 80/120 and 2/3 should be rendered as fractions with
numerator above denominator and horizontal fraction bar aligned with the
- In test 5, "2" should be rendered as a superscript.
- In test 6, "square root of 44000" should be rendered as a radical
symbol covering the "44000".
- In test 7, elements "the way", "the world ends" etc should be layout as
a table with 2 rows and 3 columns, vertically centered with respect to
the equation axis.
- The greek letters should have
font-style: italic applied
Note that the fraktur h and script A are supposed to be invariant to
style change, most fonts render the latter slanted.
- The parentheses should stretch to become at least as tall as their
content and should render symmetrically with respect to the equation
- The spacing around the operators, namely invisible function application
U+2061, parenthesis, braces, plus and equal signs,
should be "reasonable" in
some sense (neither too small nor excessively large). These operators
should also be correctly aligned with respect to the equation axis.