d = new FunctionDialog();
d.setFunction("cos(x)^2");
d.setPoints(200);
d.setRange(-10,10);
d.setDestination(2);
d.setLabel();

st = newStyle();
st.setColor("red");
d.setStyle(st);

sy = newSymbol();
sy.setType(10);
d.setSymbol(sy);

d.Apply();

w = activeWorksheet();
p = w.get2DPlot(w.API());

a = p.getAxis(1);
a.setScale(LOG10);
w.redraw();