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What am I missing?
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Al Greynolds
Dec 4, 2020, 11:11:01 AM12/4/20
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From these Gnuplot 5+ commands:
rx=2;kx=0;ry=1;ky=-1
ex=(1+kx)/rx
ey=(1+ky)/ry
show variables
I get this output:
rx = 2
kx = 0
ry = 1
ky = -1
ex = 0
ey = 0
Why is ex zero?
Al
rx=2;kx=0;ry=1;ky=-1
ex=(1+kx)/rx
ey=(1+ky)/ry
show variables
I get this output:
rx = 2
kx = 0
ry = 1
ky = -1
ex = 0
ey = 0
Why is ex zero?
Al
Chris Elvidge
Dec 4, 2020, 2:12:08 PM12/4/20
to
FORTRAN and C. Integers are entered as "1", "-10", etc; reals as "1.0",
"-10.0", "1e1", 3.5e-1, etc. The most important difference between the
two forms is in division: division of integers truncates: 5/2 = 2;
division of reals does not: 5.0/2.0 = 2.5.
--
Chris Elvidge
England
Al Greynolds
Dec 4, 2020, 2:51:28 PM12/4/20
to
On Friday, December 4, 2020 at 12:12:08 PM UTC-7, Chris Elvidge wrote:
> Note that gnuplot uses both "real" and "integer" arithmetic, like
> FORTRAN and C. Integers are entered as "1", "-10", etc; reals as "1.0",
> "-10.0", "1e1", 3.5e-1, etc. The most important difference between the
> two forms is in division: division of integers truncates: 5/2 = 2;
> division of reals does not: 5.0/2.0 = 2.5.
>
>
> --
> Chris Elvidge
> England
Duh! Thanks. I'm used to working in another app where all numbers are stored as doubles.
> Note that gnuplot uses both "real" and "integer" arithmetic, like
> FORTRAN and C. Integers are entered as "1", "-10", etc; reals as "1.0",
> "-10.0", "1e1", 3.5e-1, etc. The most important difference between the
> two forms is in division: division of integers truncates: 5/2 = 2;
> division of reals does not: 5.0/2.0 = 2.5.
>
>
> --
> Chris Elvidge
> England
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