每次输⼊两个复数,每个复数均包括由空格分隔的两个浮点数,输⼊第⼀个复数后,键⼊回⻋,然后继续输⼊第⼆个复数。 8 H: D0 j$ v/ ^ 输出两个复数,每个复数占⼀⾏;复数是由⼩括号包围的形如 (a+bi) 的格式。注意不能输出全⻆括号。. P* F3 Z( A8 E6 V5 { R
样例输⼊ - r' A! e6 E. v z r: f `3 z1. ^6 U- \! G P- @; r% D3 \, @
2 5 `) E$ M# J6 y! B! n4 P-1.1 2.0 , n) @' j3 u6 I 0 -4.5 " E6 [5 P9 s1 Y: M% d6 t样例输出 " j7 V6 l. ~" f+ F! v) X# Y5 f7 q% S1% T. ~/ e, \7 E% E |) h/ @# D
2 0 A0 S1 Q0 o6 g5 j/ I1 h" e3 0 Y$ K) W3 C3 `. X48 o* g2 G8 Q/ t1 x5 j' M' Q
5 ; i7 ^0 {0 ]$ a( i! a(-1.1+2i) (0-4.5i)% Y' Z e: X8 @4 S5 X
(-1.1-2.5i)! f5 ]) |7 j& }2 |
(-1.1+6.5i) D* b5 |9 m7 c0 {8 u& s6 f
(9+4.95i) / o4 S5 Q5 O! C# P, `) {(-0.444444-0.244444i), D$ o H6 ~0 d0 v0 {
提示 / \- H) N4 N3 F 需要注意,复数的四则运算定义如下所示: $ C7 b. N1 b' P& i) W3 ?
加法法则: ( a + b i ) + ( c + d i ) = ( a + c ) + ( b + d ) i (a + bi) + (c + di) = (a + c) + (b + d)i (a+bi)+(c+di)=(a+c)+(b+d)i
减法法则: ( a + b i ) − ( c + d i ) = ( a − c ) + ( b − d ) i (a + bi) − (c + di) = (a − c) + (b − d)i (a+bi)−(c+di)=(a−c)+(b−d)i
乘法法则: ( a + b i ) × ( c + d i ) = ( a c − b d ) + ( b c + a d ) i (a + bi) × (c + di) = (ac − bd) + (bc + ad)i (a+bi)×(c+di)=(ac−bd)+(bc+ad)i
除法法则: ( a + b i ) ÷ ( c + d i ) = [ ( a c + b d ) / ( c 2 + d 2 ) ] + [ ( b c − a d ) / ( c 2 + d 2 ) ] i (a + bi) ÷ (c + di) = [(ac + bd)/(c^2 + d^2 )] + [(bc − ad)/(c^2 + d^2)]i (a+bi)÷(c+di)=[(ac+bd)/(c2+d2)]+[(bc−ad)/(c2+d2)]i: y" A' k8 {9 G2 K3 R