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Monomial2D example 5

This example shows the usage of [[Monomial2D_]] class. We test Grad method, which returns an monomial 2d object.

Modules and classes​

  • [[Monomial2D_]]

Usage​

PROGRAM main
use easifemBase
use easifemClasses
implicit none
type(Monomial2D_) :: ans, f1, f2, f3
integer(I4B) :: degree(2)
character(len=256) :: varname(2)

!!! note "Initiate" Initiate the object.

f(x,y)=x2yf(x,y)=x^2 y 
  f1=Monomial2D( 2, 1, "x", "y" )

!!! note "Grad" Evaluating gradient

dfdx=2xy\frac{df}{dx} = 2xy 
  f2 = f1 .GRAD. 1
  CALL f2%Display( "f1 .GRAD. 1 = ")

!!! example "result" f1 .GRAD. 1 =x^1*y^1 Note that [[Monomial2D_]] does not contains the coefficient.

!!! note "Grad" Evaluating gradient

dfdy=x2\frac{df}{dy} = x^2 
  f3 = f1 .GRAD. 2
  CALL f3%Display( "f1 .GRAD. 2 = ")

!!! example "result" f1 .GRAD. 2 =x^2*y^0 Note that [[Monomial2D_]] does not contains the coefficient.

END PROGRAM main