How to do modulo operation in casio fx991ms - Casio FX-115ES Scientific Calculator

This calculator can perform some operations on matrices with dimensions up to 3X3, but it cannot be used to find the rank of a matrix. Sorry.

I am sorry, but I was under the impression that the modulo operation involves integer divisions only. This means it involves only integers. However 5^(-1) is a rational number that is not an integer. And then I could be wrong.
As to doing modulo operations with this calculator, well you can't. Sorry again.

11^17=505447028499293771
mod(11^17,12)=11
Your calculator is not be able to calculate it. Even a more sophisticated Casio Graphing Calculator that has the modulo function runs into a memory error.

there is one button ab/c beneath CALC... if u want to calculate 7 mod 4 then... u should press 7 then ab/c 4 and equal to

u get 1,3,4 and ans is center number... result=3..

This calculator does not support this operation directly, you have to simulate by a divide followed by a subtraction and a multiplication. Suppose you want to calculate 256 mod 17:

1. Key in 256 [÷] 17 [=] and get the result 15,0588...
2. Note the 15 in front of the decimal separator and key in [−] 15 [=]
3. Get the modulus: [×] 17 [=] and get the modulus, 1.
   

The fx-115ES does not have a modulo operator. However, it is possible to compute the remainder using integer arithmetic. Press MODE 4 to shift into integer mode. Then calculate A modulo B as
A - B * (A / B). For example, to calculate 41 modulo 6, press
4 1 - 6 * ( 4 1 / 6 ) =
and get 5.

Press MODE 1 to return to real arithmetic.

The fx-115ES does not have a modulo operator. However, it is possible to compute the remainder using integer arithmetic. Press MODE 4 to shift into integer mode. Then calculate A modulo B as
A - B * (A / B). For example, to calculate 2 modulo 100, press
2 - 1 0 0 * ( 2/ 1 0 0 ) =
and get 2.

Press MODE 1 to return to real arithmetic.

The fx-115ES does not have a modulo operator. However, it is possible to compute the remainder using integer arithmetic. Press MODE 4 to shift into integer mode. Then calculate A modulo B as
A - B * (A / B). For example, to calculate 41 modulo 6, press
4 1 - 6 * ( 4 1 / 6 ) =
and get 5.

Press MODE 1 to return to real arithmetic.

there is one button ab/c beneath CALC... if u want to calculate 7 mod 4 then... u should press 7 then ab/c 4 and equal to
1, 3 ,4 which is 4*1=4 and 7-4=3 remainder...

Hi,

Kindly give a brief discription of your problem...

Thanks and Regards