math question

[sonoma1993]

subtract the binary number 11001 from 10101

do they mean 11001 - 10101

or do they mean 10101 - 11001

 

[PurdueRy]

second

 

[thelanx]

The second one.

 

[sonoma1993]

thanks guys, that what i thought they meant.

 

[Evadman]

10101 - 11001

(1+0+4+0+16) - (1+0+0+8+16)

 

[sonoma1993]

Originally posted by: Evadman
10101 - 11001

(1+0+4+0+16) - (1+0+0+8+16)

what? (1+0+4+0+16) - (1+0+0+8+16)????/

 

[PurdueRy]

Originally posted by: sonoma1993

Originally posted by: Evadman
10101 - 11001

(1+0+4+0+16) - (1+0+0+8+16)

what? (1+0+4+0+16) - (1+0+0+8+16)????/

Thats the correct math

 

[50]

Originally posted by: PurdueRy

Originally posted by: sonoma1993

Originally posted by: Evadman
10101 - 11001

(1+0+4+0+16) - (1+0+0+8+16)

what? (1+0+4+0+16) - (1+0+0+8+16)????/

Thats the correct math

go right to left for each binary ((1*2^0)+(0*2^1)+ (1*2^2)+(0*2^3) + (1*2^4))-((1*2^0)+(0*2^1)+(0*2^2)+(1*2^3)+(1*2^4))

 

[PurdueRy]

Originally posted by: 50

Originally posted by: PurdueRy

Originally posted by: sonoma1993

Originally posted by: Evadman
10101 - 11001

(1+0+4+0+16) - (1+0+0+8+16)

what? (1+0+4+0+16) - (1+0+0+8+16)????/

Thats the correct math

go right to left for each binary ((1*2^0)+(0*2^1)+ (1*2^2)+(0*2^3) + (1*2^4))-((1*2^0)+(0*2^1)+(0*2^2)+(1*2^3)+(1*2^4))

Something tells me the OP doesn't know his binary 😉

 

[sonoma1993]

I know my binary stuff. just didnt understand why evadman put (1+0+4+0+16) - (1+0+0+8+16) . My teacher from my last class and the teacher I have this current quarter hasnt taught us about (1+0+4+0+16) - (1+0+0+8+16) method.

 

[Anonemous]

900 🙂

 

[Juice Box]

Originally posted by: sonoma1993
I know my binary stuff. just didnt understand why evadman put (1+0+4+0+16) - (1+0+0+8+16) . My teacher from my last class and the teacher I have this current quarter hasnt taught us about (1+0+4+0+16) - (1+0+0+8+16) method.

thats not a method....thats just what the numbers stand for mathmatically! 😛

 

[Cooler]

what in encoding is it 2 complent?