Reset Your Calculator – Get Ready For The Exam. 13th December 2016 Casio Calculator, Essential Skills, GCSE Maths. This video shows you how to reset your calculator and clear the memory of all stored data. The video also shows you how to clear the memory without altering your settings, including linear display. How To Reset A Casio fx.
To do matrix multiplication in calculator Casio fx-991MS followthe steps below:-
1] Enter in the matrix mod:-
press MODE 3 times then press 2.
2] To enter the matrix:-
press SHIFT and then 4.
press 1 to select Dim. to enter the matrix.
Suppose u hv to multiply the matri A with matrix B
then seletect A by pressing 1
chose dimension for matrix A
let m=2
so press 2 then '='
again
let n=2
so press 2 then '='
Now, enter the values in matrix
MatA11, MatA12, MatA21,MatA22
every time enter the value and then ' =' to enter anothervalues..
remember values get stored in the sequence of row mean11,21,21,22
now u feel all the values of Matrix A
now to enter value of matrix B
press SHIFT and again 4.
seect Dim by pressing 1.
this time chose Mat B
and follow the steps same as u use to feel values in matrixA.
after entering the values.
u stored matrix A and B.
3]Now multiply Matrix A and Matrix B:-
press again Shift then 4 and this time select option Mat bypressing 3
to multiply matrix A and matrix B
press 1(select Mat A) then press Multiply operator(*/cross).
again press Shift then 4 then press 3 and nw selec/press2(select Mat B)
then press '='
4] you will get the another matrix Ans
But the values are in the sequence of row
to see next vaues in that matrix press '>' side of REPLAYbutton.
What is the difference between casio calclulator fx991ms and fx991es?
fx991MS digital display but fx991ES is natural text book display. Read More
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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
).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.
(1)50 mod 3
(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.
mbm294149,42466 gold badges4545 silver badges7979 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.1,57233 gold badges2424 silver badges4949 bronze badges
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 Michael87211 gold badge1212 silver badges2222 bronze badges
Lord SméagolLord Sméagol
You need 10 ÷R 3 = 1This will display both the reminder and the quoitent
÷R
Mina GabrielMina Gabriel10.4k1818 gold badges8181 silver badges113113 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
DilanGDilanG82711 gold badge1919 silver badges3434 bronze badges
Calculate
mtkmtkx/y
(your actual numbers here), and press a b/c key, which is 3rd one below Shift key.7,6661010 gold badges5555 silver badges9494 bronze badges
protected by maurisNov 11 '14 at 5:24
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