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Does anyone know how to calculate a Mod b in Casio fx-991ES Calculator. Thanks
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10 Answers
This calculator does not have any modulo function. However there is quite simple way how to compute modulo using display mode
ab/c
(instead of traditional d/c
).How to switch display mode to
ab/c
:- Go to settings (Shift + Mode).
- Press arrow down (to view more settings).
- Select
ab/c
(number 1).
Now do your calculation (in comp mode), like
50 / 3
and you will see 16 2/3
, thus, mod is 2
. Or try 54 / 7
which is 7 5/7
(mod is 5
).If you don't see any fraction then the mod is 0
like 50 / 5 = 10
(mod is 0
).The remainder fraction is shown in reduced form, so
60 / 8
will result in 7 1/2
. Remainder is 1/2
which is 4/8
so mod is 4
.EDIT:As @lawal correctly pointed out, this method is a little bit tricky for negative numbers because the sign of the result would be negative.
For example
-121 / 26 = -4 17/26
, thus, mod is -17
which is +9
in mod 26. Alternatively you can add the modulo base to the computation for negative numbers: -121 / 26 + 26 = 21 9/26
(mod is 9
).![Casio Fx 991 Es Plus Emulator For Pc Casio Fx 991 Es Plus Emulator For Pc](https://image.winudf.com/v2/image1/Y29tLnRvb2wuY2FsY3VsYXRvci5jYXNpby5meDk5MS5lcy5wbHVzX3NjcmVlbl8wXzE1NDQ1MDg3OTZfMDEz/screen-0.jpg?h=355&fakeurl=1&type=.jpg)
EDIT2: As @simpatico pointed out, this method will not work for numbers that are out of calculator's precision. If you want to compute say
200^5 mod 391
then some tricks from algebra are needed. For example, using rule(A * B) mod C = ((A mod C) * B) mod C
we can write:200^5 mod 391 = (200^3 * 200^2) mod 391 = ((200^3 mod 391) * 200^2) mod 391 = 98
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As far as I know, that calculator does not offer mod functions.You can however computer it by hand in a fairly straightforward manner.Ex.
8 mile english subtitles. (1)50 mod 3 How to install microsoft tts voices.
(2)50/3 = 16.66666667
(3)16.66666667 - 16 = 0.66666667
(4)0.66666667 * 3 = 2
Therefore 50 mod 3 = 2
Things to Note:On line 3, we got the 'minus 16' by looking at the result from line (2) and ignoring everything after the decimal. The 3 in line (4) is the same 3 from line (1).
Hope that Helped.
Edit As a result of some trials you may get x.99991 which you will then round up to the number x+1.
mbm294149,47466 gold badges4646 silver badges8181 bronze badges
ModulatorModulator
There is a switch a^b/c
If you want to calculate
then enter 491 press a^b/c then enter 12. Then you will get 40, 11, 12. Here the middle one will be the answer that is 11.
Similarly if you want to calculate
Ajoy41 mod 12
then find 41 a^b/c 12. You will get 3, 5, 12 and the answer is 5 (the middle one). The mod
is always the middle value.1,58233 gold badges2424 silver badges5050 bronze badges
Casio Scientific Calculator Fx 991 Es Plus
shantocvshantocv
You can calculate A mod B (for positive numbers) using this:
Pol( -Rec( 1/2πr , 2πr × A/B ) , Y ) ( πr - Y ) B
Then press [CALC], and enter your values for A and B, and any value for Y.
/ indicates using the fraction key, and r means radians ( [SHIFT] [Ans] [2] )
Mina Michael91711 gold badge1212 silver badges2323 bronze badges
![For For](https://i.ytimg.com/vi/4Sy2lcuaipM/maxresdefault.jpg)
Lord SméagolLord Sméagol
You need 10 ÷R 3 = 1This will display both the reminder and the quoitent
Casio Fx 991 Es Plus Emulator For Pc Windows 7
÷R
Mina GabrielMina Gabriel10.9k1919 gold badges8282 silver badges114114 bronze badges
It all falls back to the definition of modulus: It is the remainder, for example, 7 mod 3 = 1.This because 7 = 3(2) + 1, in which 1 is the remainder.
To do this process on a simple calculator do the following:Take the dividend (7) and divide by the divisor (3), note the answer and discard all the decimals -> example 7/3 = 2.3333333, only worry about the 2. Now multiply this number by the divisor (3) and subtract the resulting number from the original dividend.
so 2*3 = 6, and 7 - 6 = 1, thus 1 is 7mod3
foxt7otfoxt7ot
n1amrn1amr
Here's how I usually do it. For example, to calculate
1717 mod 2
:- Take
1717 / 2
. The answer is 858.5 - Now take 858 and multiply it by the mod (
2
) to get1716
- Finally, subtract the original number (
1717
) minus the number you got from the previous step (1716
) --1717-1716=1
.
So
1717 mod 2
is 1
.To sum this up all you have to do is multiply the numbers before the decimal point with the mod then subtract it from the original number.
AbdulrahmanAbdulrahman
type normal division first and then type shift + S->d
DilanGDilanG87711 gold badge1919 silver badges3636 bronze badges
Calculate
mtkmtkx/y
(your actual numbers here), and press a b/c key, which is 3rd one below Shift key.7,7911111 gold badges5858 silver badges9595 bronze badges
How To Find Cramer Rule On Fx 991 Es Plus
protected by maurisNov 11 '14 at 5:24
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