pspice仿真，急！求指导！

.FUNC GAMMA(u) (IF(T==0,IF(u0,arcsin(sin(PI*x))/PI,-arcsin(sin(PI*x))/PI)))
报错：  
ERROR -- Missing or invalid expression
请问这句格式哪里错了嘛?我找不到呀·····
.FUNC N_OPT(v1,v2,v3,v4) {ROUND(-Q(v1,v2,v3,v4)+(CSUM/E)*(v1*RN2+v2*RN1))}
WARNING -- Too many arguments to function Xset1.GAMMA.FUNC R1L(n,v1,v2,v3,v4) {GAMMA(0.5-n-Q(v1,v2,v3,v4)+VN(v1))/RN1}
-----------------------------------------------------------------$
ERROR -- Missing or invalid expression
就是需要这么多参数，怎么办呢，参数太多怎么处理呢?
谢谢谢谢！

.FUNC GAMMA(u) (IF(T==0,IF(u0,arcsin(sin(PI*x))/PI,-arcsin(sin(PI*x))/PI)))
.FUNC N_OPT(v1,v2,v3,v4) {ROUND(-Q(v1,v2,v3,v4)+(CSUM/E)*(v1*RN2+v2*RN1))}
.FUNC R1L(n,v1,v2,v3,v4) {GAMMA(0.5-n-Q(v1,v2,v3,v4)+VN(v1))/RN1}
.FUNC R1R(n,v1,v2,v3,v4) {GAMMA(0.5+n+Q(v1,v2,v3,v4)-VN(v1))/RN1}
.FUNC R2L(n,v1,v2,v3,v4) {GAMMA(0.5+n+Q(v1,v2,v3,v4)-VN(v2))/RN2}
.FUNC R2R(n,v1,v2,v3,v4) {GAMMA(0.5-n-Q(v1,v2,v3,v4)+VN(v2))/RN2}
原程序段~

大牛出来解答下了