Is it wrong to use eval() to read input function?

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Sergio Luis López Verbel
评论： Sergio Luis López Verbel 2020-9-8
I want to have a program that prompts the users for an equation and solves it with solve().
syms vrb
vname = input('Input variable name: ','s');
str = input('Equation: ','s');
eqn = eval(str);
solu = solve(eqn,vrb);
fprintf('%s is equal to %d.\n',vname,solu)
I also want to expand the program to solving multivariate equations but I feel that the use of eval() might complicate its efficiency to begin with.

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采纳的回答

madhan ravi
madhan ravi 2020-9-8
eqn = str2sym(str)

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