4 5 decimal

&[DATE] &[TIME] - &[FILENAME]

1 i 2^/ 1 -

i i * 1 -

1 i / i -

1 i / 1 i / * 1 -

Numeric method is right.

i - (i - (* 1 -

1 i / 1 i / * 1

Symbolic method is wrong.

Math books show the next definition for the imaginary numbers product.

For the real numbers a,b with a>0 and b>0:

a - sqrt b - sqrt * a b * sqrt - ≡

because now we are dealing with imaginary numbers

a - sqrt a sqrt i * ≡

b - sqrt b sqrt i * ≡

and

a sqrt i * (b sqrt i * (* a b * sqrt i 2^* ≡ a b * sqrt - ≡

a - sqrt b - sqrt * a - (b - (* sqrt ≠

a - sqrt b - sqrt * a b * sqrt ≠

Examples:

4 - sqrt 4 - sqrt * 4 -

44 * sqrt - 4 -

4 - sqrt 4 - sqrt * 4 - (4 - (* sqrt ≡ 0

False=0

4 - sqrt 4 - sqrt * 44 * sqrt - ≡ 1

True=1

4 - (2^sqrt 4

There are some problems with the symbolic method interpretation:

23 / π * sin 0.866

43 / π * sin 0.866 -

23 / π * sin 43 / π * sin + 3 sqrt 24 π * 3 / sin * + 2 /

It must be equal to zero.

23 / π * sin 43 / π * sin + 3.3307 1016 -^*