Forward, Backward, and Central Differences
Only three forms are commonly considered: forward, backward, and central differences.
A forward difference is an expression of the form
Depending on the application, the spacing h may be variable or constant.
A backward difference uses the function values at x and x − h, instead of the values at x + h and x:
Finally, the central difference is given by
Read more about this topic: Finite Difference
Famous quotes containing the words central and/or differences:
“The Federal Constitution has stood the test of more than a hundred years in supplying the powers that have been needed to make the Central Government as strong as it ought to be, and with this movement toward uniform legislation and agreements between the States I do not see why the Constitution may not serve our people always.”
—William Howard Taft (1857–1930)
“The differences between revolution in art and revolution in politics are enormous.... Revolution in art lies not in the will to destroy but in the revelation of what has already been destroyed. Art kills only the dead.”
—Harold Rosenberg (1906–1978)