how can I precise number in double

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Mira le
Mira le 2020-11-3
编辑： Ameer Hamza 2020-11-3
Hello,
I want to ask you how I can precise the numbers after comma
for example:
x=0.2584
the result should be x=0.2
Please help me!

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Ameer Hamza
Ameer Hamza 2020-11-3
编辑：Ameer Hamza 2020-11-3
If the numbers are positive
x = 0.2584
y = floor(x*10)/10
If both positive and negative 'x' are possible
y = sign(x)*floor(abs(x)*10)/10

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