Example:
PrintFormat( "%.1f", 10 ); // -> 10.0
You used NormalizeDouble, It's use is usually wrong, as it is in your case.
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Floating point has an infinite number of decimals, it's you were not understanding floating point and that some numbers can't be represented exactly. (like 1/10.)
Double-precision floating-point format - Wikipedia, the free encyclopediaSee also The == operand. - MQL4 programming forum (2013)
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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 non-currencies.
On 5Digit Broker Stops are only allowed to be placed on full pip values. How to find out in mql? - MQL4 programming forum (2011)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 (2012)
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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 non-currencies. So do it right.
Trailing Bar Entry EA - MQL4 programming forum (2013)
Bid/Ask: (No Need) to use NormalizeDouble in OrderSend - MQL4 programming forum (2012) -
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.
(MT4 2013)) (MT5 2022)) -
MathRound() and NormalizeDouble() are rounding in a different way. Make it explicit.
MT4:NormalizeDouble - MQL5 programming forum (2017)
How to Normalize - Expert Advisors and Automated Trading - MQL5 programming forum (2017) -
Prices you get from the terminal are already correct (normalized).
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PIP, Point, or Tick are all different in general.
What is a TICK? - MQL4 programming forum (2014)
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I'm currently using NormalizeDouble() to edit the precision of a calculation to 1 decimal point. I'm displaying this number on my chart. Most of the time it displays as e.g. 10.1 or 10.6, but when it calculates as a whole integer the visual spacing changes momentarily.
How can I get this number to display as e.g. 10.0 instead of 10?