D.5 gsldif

Numerical differentiation of a real valued function of a single real variable can be done by a library function of the form

     library('gsldif',method)

where method is one of

• 'backward'
• 'central'
• 'forward'
• 't_backward'
• 't_central'
• 't_forward'

• gsldif input parameters
• gsldif output
• gsldif exceptions
• Additional gsldif notes