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From: Per W. <pw...@ia...> - 2004-03-05 12:08:40
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Is this a school assignment? Read as string Split into tokens Build parse tree Optimize parse tree Traverse optimized tree to emit answer /Per W On Fri, 5 Mar 2004, Sriram K wrote: > hi guys, > i am a newbie to dev as well as C++. > > now i have to read a mathematical expression from the console as a string and then do some calcultions with it. > how do i go about performing calculation. > the expression or eqn contains operators like +, -, / etc and also variables i.e alphabets like x,y etc.. in addition to numbers. > > is there some other to read the data rather than reading it into a string. > > or can something be done so that numerical calculations can be made. > > ex: read "2+3-x" should be able to output 5-x as the answer. > > please do help. > > - sriram > > > Yahoo! India Insurance Special: Be informed on the best policies, services, tools and more. |