I find bugs 1.7 + 1.4 = 3.0999999999999996! [錄製_2022_02_12_21_15_51_867]

I set my example to 10 decimal places and then multiplied the result by 1 to get rid of extra zeros. See this [image] Result [image] Hope this makes it clear.

I can not understand! How to calculate more accuracy?

[image] aaronbx: How to calculate more accuracy? Fix the number of decimal places, say 3 or 5 to get a more readable result.

[unknown 1] But it crash the app variable can’t put this block!

[image] aaronbx: But it crash the app Why are you using length of block for the decimal place numbers? Use a simple number such as 4.

It is because according to the number of the decimal point

[image] aaronbx: according to the number of the decimal point Can you place a simple number instead of this length of block and see the outcome? First see it working then try to enhance it. When I use this [image] I get this [image]

What is ‘floating’? That red ‘length’ block wants a string, and it might be crashing if you’re not feeding it a string. If you’re trying to put in the actual value of the math (is floating = 3.9999999999996?), that won’t fix your floating point error. You need to round your answer to some reasona…

Welcome back Dr. Sarisky. @catsarisky

with 5 decimal places. mine is ok I think it is like this For example: floating variable 0.1 + 0.11 → 1 < 2 than floating variable 2 → 0.21 (Correct to Two Decimal Places) 0.0001 +0.01 4 > 2 than floating variable 4 → 0.0101 (Correct to Four Decimal Places)

The issue about adding two values of decimal members?

Questions about Thunkable X

jared February 12, 2022, 1:25pm 2

It’s called floating point arithmetic. It’s weird. See more here

And here

Topic		Replies	Views
Variable change problem Questions about Thunkable X	4	176	January 8, 2024
About the use of Math after the decimal point Questions about Thunkable X beginner	2	554	July 4, 2022
Showing two decimal place numbers and adding them properly Questions about Thunkable X math	17	1184	June 26, 2023
0.1*0.1=0.010000000000002 (error) Questions about Thunkable X beginner , bugs , help , math	19	1766	February 13, 2022
Multiplication answer is not quiet right Questions about Thunkable X	1	127	November 22, 2023

The issue about adding two values of decimal members?

Related topics