Excel Spreadsheet not giving same answer as C# program -


i have trouble following code. not giving same answer in excel c# , i'm sure excel answer correct. have tried change integer values double adding decimal point. please advise.

the excel version

=((1+bz21)*bx21*cg21*(b21*1))-(0.5*bz21*bx21*cg21*((c21*0)+(0*d21)))

the c# version

voltagevector[rows, 5] = ((1.0 + ki) * rp * c * (ma * 1.0)) - (0.5 * ki * rp * c * ((mb * 0.0 )+ (mc * 0.0)));

the constants ki, rp, c , ma double precision values.

ki = 0.69999999999999907; rp = 0.0469486290322602; c = 60.0 ma = 2.0; mb = 1.0; mc = 1.0;

the c# answer 

9.5775203225810763

the excel answer 9.56760000000433

i think something's funny in excel spreadsheet. when tried this, same answer in both c# , excel. believe correct answer 9.577520323. here's screenshot of excel spreadsheet:

enter image description here


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