math /xrange=-1:1
legend-inside br  /dy 1.1
legend-line 'First powers of $x$'
legend-multicol /columns=2 /dx=4mm
plot 'x' /legend '$x$'
plot 'x**2' /legend '$x^2$'
plot 'x**3' /legend '$x^3$'
plot 'x**4' /legend '$x^4$'
legend-line 'Inside'
plot 'x**5' /legend '$x^5$'
legend-multicol-end
legend-line 'End of multicol'