试用代数法化简如下逻辑函数式。(1) Y1=A(A+B); (2) Y2=BC+B-C; (3) Y3=A(A+A-B)
试用代数法化简如下逻辑函数式。(1) Y1=A(A+B); (2) Y2=BC+B-C; (3) Y3=A(A+A-B)
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以下程序中,函数 fun 的功能是计算 x 2-2x+6 ,主函数中将调用 fun 函数计算:y1=(x+8) 2-2 (x+8)+6y2=sin 2(x)-2sin(x)+6请填空。#include "math.h"double fun(double x){ return (x*x-2*x+6); }main(){ double x,y1,y2;printf("Enter x:"); scanf("%lf",x);y1=fun( 【 11 】 );y2=fun( 【 12 】 );printf("y1=%lf,y2=%lf\n",y1,y2);}
已知“a=dict(x=1,y=dict(y1=2,y2=3))”且“b=a.copy()”,则执行“a['y']['y1']=10”后,则print(b)的输出结果为()。 A、{x=1,y={y1=10,y2=3}}B、{x=1,y={y1=2,y2=3}}C、{'x':1,'y':{'y1':10,'y2':3}}D、{'x':1,'y':{'y1':2,'y2':3}}
以下程序中,函数fun的功能是计算x2-2x+6,主函数中将调用fun函数计算,请填空。y1=(x+8)2-2(x+8)+6y2=sin2(x)-2sin(x)+6 #include "math.h"double fun(double x){ return();}main(){double x,y1,y2; printf("Enter x:"); scanf("%1f,x); y1=fun(8+x); y2=fun(); printf("y1=%1f,y2=%1f\n",y1,y2);}
代数式,|e2×A+lgy13+sin y2|对应的Visual Basic表达式是 ______。A.Abs(e^2*a+Log(y1^3)+Sin(y2))B.Abs(Exp(2)*a+Log(y1^3)/Log(10)+Sin(y2))C.Abs(e^2*a+lg(y1^3)+Sin(y2))D.Abs(Exp(2)*a+Log(y1^3)+Sin(y2))
代数式|e3×a+1gy13+siny2|对应的Visual Bask表达式是( )。A.Abs(e^3*a+1g(y1^3)+1/sin(y2))B.Abs(Exp(3)*a+Log(y1^3)/Log(10)+sin(y2))C.Abs(Exp(3)*a+Log(y1^3)+sin(y2))D.Abs(Exp(3)*a+Log(y1^3)+1/sin(y2))
以下程序中,函数fun的功能是计算x2(上标)-2x+6,主函数中将调用fun函数计算:y1=(x+8)2(上标)-2(x+8)+6y2=sin2(上标)(x)-2sin(x)+6请填空。include "math.h"double fun(double x){ return (x*x-2*x+6);}main(){ double x,y1,y2;printf("Enter x:"); scanf("%1f",x);y1=fim([ ]);y2=run([ ]);printf("y1=%1f,y2=%1f\n",y1,y2);}
试用代数法将如下逻辑函数式化简成最简与或式。(1) Y1=A-B-C+(A+B+C—————)+A-B-C-D(2)Y2=ABCD+ABCD——+AB——CD(3) Y3=ABC(AB+C-(BC+AC))
用ROM实现如下逻辑函数(采用74LS138作为地址译码器)Y1(A, B, C)=∑m (3,6,7)Y2(A, B, C)=∑m (0,1,4,5,6)Y3(A,B, C)=∑m (2,3,4)Y4(A, B, C)=∑m (2,3,4,7)
下面的程序使用了函数指针,其运行结果是______。#include<stdio.h>#include<math.h>int f1(int a){return a*a;}int f2(int a){return a*a*a;}void main( ){int x=3,y1,y2,y3,y4;f=f1;y1=(*f)(x);y2=f1(x);f=f2;y3=f(x);y4=f2(x);printf("y1=%d,y2=%d,y3=%d,y4=%d\n",y1,y2,y3,y4);}A.y1=27,y2=9,y3=9,y4=27B.y1=9,y2=9,y3=27,y4=27C.y1=9,y2=27,y3=9,y4=27D.y1=27,y2=27,y3=9,y4=9
仔细阅读下面程序,请给出运行结果( )。#include#includeint f1(int x){return x*x;}int f2(int x){return x*x*x;}main( ){int x=3,y1,y2,y3,y4;int(*f)( );f=f1;y1=(*f)(x);y2=f1(x);f=f2;y3=f(x);y4=f2(x);printf(“y1=%d,y2=%d,y3=%d,y4=%d\n”,y1,y2,y3,y4);}A.y1=9,y2=9,y3=27,y4=27B.y1=3,y2=9,y3=27,y4=9C.y1=3,y2=3,y3=9,y4=9D.y1=3,y2=9,y3=9,y4=27
用3线-8译码器74LS138和辅助门电路实现逻辑函数F=A2+A2’A1’,应()。A、用与非门,F=(Y0’Y1’Y4’Y5’Y6’Y7’)’B、用与门,F=Y2’Y3’C、用或门,F=Y2’+Y3’D、用或门,F=Y0’+Y1’+Y4’+Y5’+Y6’+Y7’
单选题设y1=e2x/2,y2=exshx,y3=exchx,则( )。Ay1,y2,y3都没有相同的原函数By2与y3有相同的原函数,但与y1的原函数不相同Cy1,y2,y3有相同的原函数ex/(chx+shx)Dy1,y2,y3有相同的原函数ex/(chx-shx)