C+ L1,L2,K where K is label of an image line of the form " XXXX XXX XX 123.12 " computes the sum of the XXX columns to the column indicated by a numeric mask (like 123.12) for the lines L1-L2. C* L1,L2,K works as C+, but the product of XXX columns is computed. C- L1,L2,K where K is label of an image line of the form " XXXX YYY 123.12" subtracts the YYY column from the XXXX column. C/ L1,L2,K where K is label of an image line of the form " XXXX YYY 123.12" divides the XXXX column by the YYY column. C% L1,L2,K where K is label of an image line of the form " XXXX YYY 123.12" computes the ratio of the XXX and YYY columns in percentages. C+log L1,L2,K computes the sum of the logarithms of the XXXX columns. Other functions available are: sqrt,exp,sin,cos,tan,arctan,int and abs. The same functions may be included in C-,C*,C/ and C% as well. T = More information on table management

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