Last Updated：2025/12/02
(mathematics, mnemonic) An acronym used to remember the sign values of all the trigonometric functions in the two-dimensional Cartesian coordinate system: all, sine, tangent, cosine — signifying which of the functions are positive, in the order of the quadrants, starting at the top right and moving counterclockwise.
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all students take calculus
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Source Word
all students take calculus
Phrase
mnemonic
(mathematics,
mnemonic)
An
acronym
used
to
remember
the
sign
values
of
all
the
trigonometric
functions
in
the
two-dimensional
Cartesian
coordinate
system:
all,
sine,
tangent,
cosine
—
signifying
which
of
the
functions
are
positive,
in
the
order
of
the
quadrants,
starting
at
the
top
right
and
moving
counterclockwise.
Japanese Meaning
数学の記憶法として使われる頭字語です。直交座標系における四象限それぞれで、どの三角関数が正の値を取るかを覚えるため、'all'＝全て、'students'＝正弦、'take'＝正接、'calculus'＝余弦を意味し、第一象限（右上）から反時計回りに対応します。
Sense（1）
(mathematics,
mnemonic)
An
acronym
used
to
remember
the
sign
values
of
all
the
trigonometric
functions
in
the
two-dimensional
Cartesian
coordinate
system:
all,
sine,
tangent,
cosine
—
signifying
which
of
the
functions
are
positive,
in
the
order
of
the
quadrants,
starting
at
the
top
right
and
moving
counterclockwise.
