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。 ) T# W, Q* \- X# }+ C 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。5 ?! U J8 i; B; H7 V
样例输⼊ - u5 y K' t: A$ v1 + W. g% P% e4 Z. l21 F# e. {/ B$ m9 F9 ^) {5 g @( r
-1.1 2.0 n3 Z% a) G/ F! B$ O* V/ Q
0 -4.5, ~* ]7 i2 V. Y
样例输出 # u' E+ i, F# e6 G+ y# A1 z: J d" d, [2 8 {2 X, _% r% n% `1 D3 . [& v/ U% Q) q# m4 t- U& y4 s, b# W% U5 ]! g
5 4 Z6 Z! O" D% k" i(-1.1+2i) (0-4.5i)- a z4 l8 _8 h+ {: F$ p
(-1.1-2.5i) # `" V4 l; h2 Y' M(-1.1+6.5i)" f7 P" P' m6 E- y8 x8 o
(9+4.95i)- x- p5 T' F! c3 `
(-0.444444-0.244444i) # f0 S! A, V+ g5 f提示6 L3 q8 T8 m, ]/ q0 ]: O
需要注意,复数的四则运算定义如下所示:; c1 I) E& A% g# e# f- H7 i+ v! y& ]. e
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 9 z2 C8 R8 I; K/ P8 n9 k; o