Round                   Round of Numbers that is improved.
ch-package              ch: some small functions
console_cl              Remove '>' and '+' from the console and add '#'
                        to the run result.
csv2vcf                 about csv2vcf
ggpng                   Create a picture with a transparent background.
ground_state            Ground-State spectral term
lat_fmt                 tex format and $$...$$
monoa                   Calculate The pH of weak acid/base
period_table            Draw the Periodic table
plot_table              Use ggplot2 to plot a table
read.txt                Read the text to data.frame
scan.str                Read string into a vector
show_color              An easy way to show colors in ggplot2
show_ruler              Use ggplot to draw ruler
sym2poly                Extracting coefficients from polynomials
symb                    Generating multiple symbols at once
