Is it possible to truncate the digits after decimal point in Metapost
when using textext()? Please see the minimal example below which
produces 1.84375. Can I just keep the first digit and have it produce
1.8 ?





        u := 1cm;
        pickup pencircle scaled 2pt; % default pen thickness
                vardef f(expr x) =
                label.lft(textext(decimal f(5)),(0,f(5)) scaled u);             

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