英文關鍵字
algebra
algorithm
arithmetic
calculation
chalk
chalkboard
chart
cos
cosine
curve
diagram
drawing
education
equation
exercise
formula
function
graph
higher
illustration
institute
math
mathematics
number
school
sin
sine
study
teaching
英文關鍵字
algebra
algorithm
arithmetic
calculation
chalk
chalkboard
chart
cos
cosine
curve
diagram
drawing
education
equation
exercise
formula
function
graph
higher
illustration
institute
math
mathematics
number
school
sin
sine
study
teaching