# Set 1300×975 SVG output and filename
# The font size (fsize) sets the size for the circles, too.
set samples 400
set terminal svg enhanced size 1300 975 fname "Times" fsize 36
set output "sinc function (both).svg"

# Set y axis limits so the plot doesn't go right to the edges of the graph 
set yrange [-0.3:1.1]
set xrange [-6*pi:6*pi]

set lmargin 5
set bmargin -10

# No legend needed
#set nokey

# Add lightly-colored axis lines
set yzeroaxis
set xzeroaxis

# Put a y-axis tic at every 0.2
set ytics 0.2
set mytics 4

# Put an x-axis tic at every integer
set xtics 5
set format x "%2.0f"
set mxtics 5

# Put a second x-axis tic at every multiple of 2*pi

set x2tics 2*pi
set format x2 "%2.0f"
set mx2tics 2
set grid x x2 y
set xtics nomirror

# Format tics as digit with one decimal place
set format y "%2.1f"

# Plot as lines
plot sin(x)/x with lines, sin(pi*x)/(pi*x) with lines
 
# Close the file (so I don't have to close gnuplot to view it)
set output