[}–¼] •Ç–ä—l‚U

 [˜A—§•û’öŽ®] Z=Sin(ƒÎ*X+0.5*Sin(2*ƒÎ*X)
                 *1.7*Sin(ƒÎ*Y))*
                 SIN(ƒÎ*Y+0.5*Sin(2*ƒÎ*Y)
                 *1.7*Sin(ƒÎ*X))
              Z=0      ƒÎ=3.14159

 [•û’öŽ®‚ÌÀ•WŒn] ŠÖ”À•WŒn

 [•û’öŽ®‚ÌÀ•W•Ï”] X,Y

 [F] Z=ƒ0‚ňÃÂAZ„0‚ň×ÎB

 [•û’öŽ®‚Ì‹OÕ] •û’öŽ® Z=0‚Ì‹OՂ͈ÂÆ
                ˆÃ—΂̋«ŠEüB

ƒOƒ‰ƒtƒBƒbƒNƒX‚Ì–ÚŽŸ‚Ö