precision of the result

(setq L1 1000
       L2 1000
       L3 1000
       L4 1000
       L5 1000
)
(setq scount 10)
(setq L6 120
        H 6)
(setq sdist (/ (- (+ L1 L2 L3 L4 L5) (+ L6 (* 2 H))) (- scount 2)))

Actually the value of scount =608.5

but it is rounded to 608

How am i to get actual value?

(setq sdist (/ (float (- (+ L1 L2 L3 L4 L5) (+ L6 (* 2 H)))) (- scount 2)))

if you divide a whole number by a whole number you will get ====> YES a whole number

Set the System Variable dimzin to 0 and try again .

thanks it works

Set the System Variable dimzin to 0 and try again .

DIMZIN only affects (rtos) & (angtos) calls. Not the actual calculation. (float) is the correct way to fix a division of integer problem. -David

DIMZIN only affects (rtos) & (angtos) calls. Not the actual calculation. (float) is the correct way to fix a division of integer problem. -David

Thank you David for the clarifications .

Appreciated a lot.

Tharwat