Own general purpose files

  Project management

    backup      - Backup and clean up present directory.
    printsource - Pretty print the sourcecode of a script trough LaTeX

  Swedish date system (YYMMDD, YYYYMMDD)

    datumnum    - Serial date number
    datumstr    - String representation of date
    datumvec    - Date components
    daynum      - Daynumber and date intervals
    secs        - Conv hms to seconds

  Variables handling

    delimit     - Parts within numerical limitations
    multiply    - Multiplication of a vector to a matix
    normal      - Normalize matrix to [0:1] columnwise
    spolyfit1   - Direct prop. reg. NB polyfit0 is better!
    spolyfit3   - Third order reg. no const term NB polyfit0 is better!
    explode     - Divide string into substrings in cell array
    implode     - Concatenate fields of cell array C to string S with delim
    
  Quick matrix handling

    onfinite    - Acting on finite elements
    qmean       - Mean of finite elements
    qmedian     - Median of finite elements
    qinterp1    - Sort and interpolate

  Plots

    linreg      - Plot linear regression line
    texttag     - Put texttags in figures