How to do partial function on input equations?

equn='Numerator:';
eqpn=inputdlg(equn);
eqn=str2sym(eqpn);
equd='Denominator:';
eqpd=inputdlg(equd);
eqd=str2sym(eqpd);
syms(symvar(eq));
varprompt='With Respect to Variable:';
var=inputdlg(varprompt);
frac=(eqn)/(eqd);
k=partfrac(str2sym(frac),var);
disp(k)

Error using str2sym (line 46)

Argument must be string, character vector, or cell

array of character vectors.

Error in untitled10 (line 13)

k=partfrac(str2sym(frac),var);

Answer 1

[Walter Roberson]

var = str2sym(inputdlg(varprompt));

[goodwin membreve]

still doesnt work. i think the problem is the k=partfrac(str2sym(frac),var); i think the problem is the "fraq" equation

[Walter Roberson]

equn = 'Numerator:';
eqpn = inputdlg(equn);
eqn = str2sym(eqpn);
equd = 'Denominator:';
eqpd = inputdlg(equd);
eqd = str2sym(eqpd);
syms(symvar(eq));
varprompt = 'With Respect to Variable:';
var = str2sym(inputdlg(varprompt));
frac = (eqn)/(eqd);
k = partfrac(frac, var);
disp(k)

[goodwin membreve]

oh wow thank you very much!!