Multiplication by 0: non-zero in versions 8 and 9

*To*: mathgroup at smc.vnet.net*Subject*: [mg131171] Multiplication by 0: non-zero in versions 8 and 9*From*: Sotirios Bonanos <sbonano at inp.demokritos.gr>*Date*: Sat, 15 Jun 2013 04:23:48 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-outx@smc.vnet.net*Delivered-to*: mathgroup-newsendx@smc.vnet.net

Hello , I have noticed that in all Mathematica versions <8, multiplying a real or complex number by the integer 0 gives 0, but in versions 8 and 9 Times[0, 0.567] gives 0. and Times[1.23 + I 2.45, 0] gives 0. + 0. I I don't know what prompted this change but it is definitely wrong: the zero property of multiplication holds for real and complex numbers also (see https://en.wikipedia.org/wiki/Multiplication#Properties) . Sotirios Bonanos http://www.inp.demokritos.gr/~sbonano/

**Follow-Ups**:**Re: Multiplication by 0: non-zero in versions 8 and 9***From:*Murray Eisenberg <murray@math.umass.edu>

**Re: Multiplication by 0: non-zero in versions 8 and 9***From:*Bob Hanlon <hanlonr357@gmail.com>