高中数学课件新人教a版必修三：1.2.2 条件语句

课件114张PPT。 1.2.2 条件语句主讲教师 练 习练 习A条件语句知识探究（一）:条件语句（1） 知识探究（一）:条件语句（1） 知识探究（一）:条件语句（1） INPUT xINPUT xIF x<0 THENINPUT xIF x<0 THENx=-xINPUT xIF x<0 THENx=-xEND IFINPUT xIF x<0 THENx=-xEND IFPRINT xENDINPUT xIF x<0 THENx=-xEND IFPRINT x知识探究（二）:条件语句（2） 知识探究（二）:条件语句（2） 知识探究（二）:条件语句（2） 知识探究（二）:条件语句（2） INPUT “x=”；xINPUT “x=”；xIF x>=0 THEN INPUT “x=”；xIF x>=0 THEN PRINT xINPUT “x=”；xIF x>=0 THEN PRINT xELSEINPUT “x=”；xIF x>=0 THEN PRINT xELSEPRINT -xINPUT “x=”；xIF x>=0 THEN PRINT xELSEPRINT -xEND IFENDINPUT “x=”；xIF x>=0 THEN PRINT xELSEPRINT -xEND IF理论迁移理论迁移IF d>=0 THENIF d>=0 THENp= -b/(2*a)IF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pELSEIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pELSEPRINT “x1，x2=”；p+q，p-qIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pELSEPRINT “x1，x2=”；p+q，p-qEND IFIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pELSEPRINT “x1，x2=”；p+q，p-qELSEEND IFIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pELSEPRINT “x1，x2=”；p+q，p-qELSEPRINT “No real root.”END IFIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pELSEPRINT “x1，x2=”；p+q，p-qEND IFELSEPRINT “No real root.”END IFENDIF d>=0 THENp= -b/(2*a)q=SQR(d)/(2*a)IF d=0 THENPRINT “x1=x2=”；pELSEPRINT “x1，x2=”；p+q，p-qEND IFELSEPRINT “No real root.”END IF算法分析:算法分析:算法分析:算法分析:算法分析:算法分析:INPUT a，b，cINPUT a，b，cIF b>a THENINPUT a，b，cIF b>a THENt=aINPUT a，b，cIF b>a THENt=aa=bINPUT a，b，cIF b>a THENt=aa=bb=tINPUT a，b，cIF b>a THENt=aa=bb=tEND IFINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tEND IFINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tEND IFIF c>b THENINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tEND IFIF c>b THENt=bINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tEND IFIF c>b THENt=bb=cINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tEND IFIF c>b THENt=bb=cc=tINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tEND IFIF c>b THENt=bb=cc=tEND IFINPUT a，b，cIF b>a THENt=aa=bb=tEND IFIF c>a THENt=aa=cc=tEND IFIF c>b THENt=bb=cc=tEND IFPRINT a，b，cEND小结作业小结作业小结作业小结作业作业:习案6