FME
涓洓鍒欒繍绠椾腑鐨?/p>
Math Functions
锛堟暟瀛﹀嚱鏁帮級
鍘熸枃锛?
file:///C:/Program%20Files/FME2015.0/help/fme_desktop/FME_Desktop_Help.htm#..
/Subsystems/FME_Transformers/Content/transformer_parameters/math_functions.ht
m
鍥涘垯缂栬緫鍣ㄦ敮鎸佷笅鍒楁暟瀛﹀嚱鏁拌〃杈惧紡銆?/p>
涓嬪垪鎵�鏈夊嚱鏁扮殑鍙傛暟涓哄弻绮惧害锛屽苟杩斿洖鍙岀簿搴﹀�硷紝
闄ら潪瀹冧滑鏄?/p>
鍊肩被鍨嬭浆鎹㈠嚱鏁帮紝渚嬪
@int()
,
@double()
,
鍜?/p>
@real32()
銆?/p>
瀵逛簬鎵�鏈夊弬鏁版暟閲忎笉瀹氱殑鍑芥暟锛屽弬鏁颁腑鍖呭惈
null,missing
鎴栫┖瀛楃涓茬殑鍊奸兘浼氳杩囨护鎺夈�傜劧鑰岋紝濡?/p>
鏋滃彉閲忓弬鏁板垪琛ㄥ彧鍖呭惈
null,missing
鍜岀┖瀛楃涓诧紝鍑芥暟杩斿洖
null
銆?/p>
鍑芥暟鎺ユ敹鍒伴潪鏁板瓧鍨嬨�?/p>
null
銆?/p>
missing
鎴栫┖瀛楃涓插弬鏁版椂浼氳繑鍥?/p>
null
锛屽苟闄勫姞鍒?
fme_expression_warnings
鍒楄〃灞炴�т腑銆傚浜庢墍鏈夊弬鏁板浐瀹氱殑鍑芥暟锛岃繑鍥炲弻绮惧害鍊硷紝濡傛灉鍙傛暟涓?/p>
NaN
锛?/p>
鍒欓璁＄粨鏋滀负
NaN
銆?/p>
鎵�浠ヤ笅鍒楁彁渚涚殑鎻忚堪鐨勫墠鎻愭槸鍑芥暟鍙傛暟鏄暟鍊煎瀷銆?/p>
non-null
锛?/p>
non-infinity
鍜?/p>
non-NaN
銆?/p>
鍑芥暟
鎻忚堪
abs(arg)
杩斿洖
arg
鐨勭粷瀵瑰�?/p>
acos(arg)
杩斿洖
arg
鐨勫弽浣欏鸡鍊硷紝
鍊肩殑鑼冨洿
[0,pi]
銆?/p>
Arg
鐨勫�煎湪
[-1,1]
鑼冨洿銆?/p>
add(arg1,[arg2]...)
杩斿洖鍙傛暟鐨勫拰銆?/p>
asin(arg)
杩斿洖
arg
鐨勫弽姝ｅ鸡鍊硷紝鍊肩殑鑼冨洿
[-pi/2,pi/2]
銆?/p>
Arg
鐨勫�煎湪
[-1,1]
鑼冨洿銆?/p>
atan(arg)
杩斿洖
arg
鐨勫弽姝ｅ垏鍊硷紝鍊肩殑鑼冨洿鍦?/p>
[-pi/2,pi/2]
銆?/p>
atan2(y,x)
杩斿洖
y/x
鐨勫弽姝ｅ垏鍊硷紝鍊肩殑鑼冨洿鍦?/p>
[-pi,pi]
銆?/p>
x
鍜?/p>
y
涓嶈兘鍚屾椂涓?/p>
0.
average(arg1,[arg2]...
)
杈撳叆鏁板瓧鍒楄〃骞舵眰鍑哄钩鍧囧�笺�傚拷鐣ョ┖銆?/p>
missing
鍜?/p>
null
杈撳叆锛岃嫢
杈撳叆涓洪潪鏁板�煎瀷鏁版嵁浼氬鑷村け璐ャ�傚鏋滄病鏈夎緭鍏ワ紝杩斿洖绌哄瓧绗︿覆銆?/p>
ceil(arg)
浠ュ弻绮惧害鐨勬柟寮忚繑鍥炰笉灏忎簬
arg
鐨勬渶灏忔暣鏁伴儴鍒嗐�?/p>
cos(arg)
杩斿洖
arg
鐨勪綑寮﹀�硷紝浠ュ姬搴︿负鍗曚綅銆?/p>
cosh(arg)
杩斿洖
arg
鐨勫弻鏇蹭綑寮︺�傚鏋滃彂鐢熸孩鍑猴紝杩斿洖鏃犵┓澶с�?/p>
degToRad(arg)
灏嗗害杞崲涓哄姬搴︺�?/p>
div(x,y)
璁＄畻
x/y
銆傚鏋滈櫎鏁颁负
0
锛岃繑鍥炴棤绌峰ぇ銆?/p>
double(arg)
浠ュ弻绮惧害褰㈠紡杩斿洖
arg
銆?/p>
exp(arg)
杩斿洖
arg
鐨勬寚鏁帮紝浠?/p>
e
涓哄簳锛?/p>
e
鐨?/p>
arg
娆″箓锛屽鏋滃彂鐢熸孩鍑猴紝杩?