Tips for decoding the excel PRODUCT function

Question

Tips for decoding the excel PRODUCT function

Seeking help to convert the =(1-PRODUCT(K5:K14)) Excel formula into JavaScript code.

I attempted to write the code based on my own understanding, but the result is not what I expected.

exp_PRODUCT= [
  0.993758608,
  0.993847362,
  0.993934866,
  0.994021137,
  0.994106197,
  0.990118552,
  0.990226925,
  0.990334122,
  0.990440146,
  0.990545020
]

let result = 0.0;
for(let prod of exp_PRODUCT){
    result = parseFloat(prod) + result;
} 
console.log('Total :' ,1-result )

The expected answer is around 7.XXXX%

javascript typescript excel-formula

Answer 1

Answer №1

To better understand multiplication, consider the example below:

exp_MULT= [
0.998765432,
0.998888888,
0.998987654,
0.999012345,
0.999123456,
0.999234567,
0.999345678,
0.999456789,
0.999567890,
0.999678901
]

totalResult = 1.0;
for(let mult of exp_MULT){
    totalResult *= parseFloat(mult);
}

console.log('Final Result: ', 1 - totalResult)

Answer 2

To better understand multiplication, consider the example below:

exp_MULT= [
0.998765432,
0.998888888,
0.998987654,
0.999012345,
0.999123456,
0.999234567,
0.999345678,
0.999456789,
0.999567890,
0.999678901
]

totalResult = 1.0;
for(let mult of exp_MULT){
    totalResult *= parseFloat(mult);
}

console.log('Final Result: ', 1 - totalResult)

Tips for decoding the excel PRODUCT function

Answer №1

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