the result for the above code is 0.08 - 0.07000000000000001
I tried NormalizeDouble but it didn't work
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Floating point has infinite number of decimals, it's your not understanding floating point and that some numbers can't be represented exactly. (like 1/10.)
Double-precision floating-point format - Wikipedia, the free encyclopedia -
Print out your values to the precision you want with DoubleToString - Conversion Functions - MQL4 Reference.
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SL/TP (stops) need to be normalized to tick size (not Point) — code fails on metals. (On 5Digit Broker Stops are only allowed to be placed on full pip values. How to find out in mql? - MQL4 programming forum) and abide by the limits Requirements and Limitations in Making Trades - Appendixes - MQL4 Tutorial and that requires understanding floating point equality Can price != price ? - MQL4 programming forum
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Open price for pending orders need to be adjusted. On Currencies, Point == TickSize, so you will get the same answer, but it won't work on Metals. So do it right: Trailing Bar Entry EA - MQL4 programming forum or Bid/Ask: (No Need) to use NormalizeDouble in OrderSend - MQL4 programming forum
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Lot size must also be adjusted to a multiple of LotStep and check against min and max. If that is not a power of 1/10 then NormalizeDouble is wrong. Do it right.
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MathRound() and NormalizeDouble() are rounding in a different way. Make it explicit.
MT4:NormalizeDouble - MQL5 programming forum
How to Normalize - Expert Advisors and Automated Trading - MQL5 programming forum - Prices you get from the terminal are already normalized.
- PIP, Point, or Tick are all different in general.
What is a TICK? - MQL4 programming forum 2014.08.03
You used NormalizeDouble, It's use is usually wrong, as it is in your case.
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Floating point has infinite number of decimals, it's your not understanding floating point and that some numbers can't be represented exactly. (like 1/10.)
Double-precision floating-point format - Wikipedia, the free encyclopedia -
Print out your values to the precision you want with DoubleToString - Conversion Functions - MQL4 Reference.
-
SL/TP (stops) need to be normalized to tick size (not Point) — code fails on metals. (On 5Digit Broker Stops are only allowed to be placed on full pip values. How to find out in mql? - MQL4 programming forum) and abide by the limits Requirements and Limitations in Making Trades - Appendixes - MQL4 Tutorial and that requires understanding floating point equality Can price != price ? - MQL4 programming forum
-
Open price for pending orders need to be adjusted. On Currencies, Point == TickSize, so you will get the same answer, but it won't work on Metals. So do it right: Trailing Bar Entry EA - MQL4 programming forum or Bid/Ask: (No Need) to use NormalizeDouble in OrderSend - MQL4 programming forum
-
Lot size must also be adjusted to a multiple of LotStep and check against min and max. If that is not a power of 1/10 then NormalizeDouble is wrong. Do it right.
-
MathRound() and NormalizeDouble() are rounding in a different way. Make it explicit.
MT4:NormalizeDouble - MQL5 programming forum
How to Normalize - Expert Advisors and Automated Trading - MQL5 programming forum - Prices you get from the terminal are already normalized.
- PIP, Point, or Tick are all different in general.
What is a TICK? - MQL4 programming forum 2014.08.03
thank you for your answer
I understand the problem now but I still don't know exactly how to fix it
I don't just want it to be printed out, I want to use it as lot size, so DoubleToString will not fix the problem
if you could just tell me exactly what changes do I have to do to get the code to work right
thank you again
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Hello,
the result for the above code is 0.08 - 0.07000000000000001
but it should be 0.07 - 0.07
()
what is the problem and how can I fix it?
I tried NormalizeDouble but it didn't work
I changed OrderSizeArr type to float and it worked, but kept giving a warning , so I changed it back to double.
thank you