plot
The generalised visualisation function.
Syntax

plot(equation[, a, b[, δ]])

equation
is an equation


plot(inequality[, a, b[, δ]])

inequality
is an inequality


plot(inequalities[, a, b[, δ]])

inequalities
is a chain of two inequalities


plot(data)

data
is a sequence of (X, Y) points

Description
If equation
is an equation in the Cartesian coordinates x
and y
with either the LHS or the RHS equal to one of these variables and the other side not containing this variable, then plot(equation)
plots this function curve.
Examples:
y = sin(x) x = √y + 1 ln(x) + 4 = y
If inequality
is an inequality in the Cartesian coordinates satisfying the same restrictions, then the implied planar region is plotted.
Examples:
y < sin(x) x > √y + 1 ln(x) + 4 < y
If inequalities
is a chain of two inequalities in the Cartesian coordinates x
and y
and at least one side is such a variable isolated and the remaining sides functions of this variable, then the implied region (the region between two function curves) is plotted.
Examples:
sin(x) < y < 2⋅sin(x)
In all these cases, the plot is taken as the independent variable goes from a
to b
in steps of delta
; if omitted, a default value is used for each parameter.
plot(data)
is the same as ScatterPlot(data)
.
The plot is shown in the current diagram and a reference to the plot is returned.
Examples
plot(y = sin(x), −π, π)
plot(cos(x) < y < 2⋅cos(x), −π, π)