method 1:

p := [`$`([n, 1], n = 2 and n = 3 and n = 5 and n = 7)]

plot(l, x = 0 .. 15, style = point, symbol = circle)

how to make method 1 right,I know if n=1..7,that's right,but n should be prime numbers.

Is there prime plot?

question2:

plot(piecewise(x = 2, 1), x = -2 .. 6) or plot(piecewise(x = 2 and x=3 and x=5 and x=7, 1), x = -2 .. 6)

why this is not right,I can't see the point (2,1)...(3,1),(5,1),(7,1)

question3:

add plot label directly,p1 := plot(piecewise(x< 2, 1), x = -2 .. 6)

Is there some palettes to choose font (size) more convenient?

can I set the defaut size of "Heading 1","Serif",size 18 as 14,for example.

question2:ctrl+period hotkey doesn't work.

some ODEs can be solved by using different methods,how does maple chosse the methods?

integrating fator problems

question2:what's the error I made in solving the following ODE step by step? the second method and answer is right.

question3:Can Maple automatically add multiplication sign instead of spaces?

convert to ln(e) to 1

maybe I've asked some similar questions several days ago,

when input "()" in 2D-Math mode,sometimes I can't edit the context,I can't delete the parentheses,and add something between them.It seems to be locked,