T_r = T_s / T_m
one_o_Vphoto2_r = one_o_Vphoto2_s / one_o_Vphoto2_m
string = "Variable (units) : mean +/- std. dev. (relative error)\n"
- string += "Cantilever k (N/m) : %g +/- %g (%g)\n" \
+ string += "Cantilever k (N/m) : %g +/- %g (%g)\n" \
% (k_m, k_s, k_r)
string += "photoSensitivity**2 (V/nm)**2 : %g +/- %g (%g)\n" \
% (photoSensitivity2_m, photoSensitivity2_s, photoSensitivity2_r)