# FX-9860GII help with PEMDAS

fx-9860gii

5 replies to this topic

### #1 GodOfCows

GodOfCows

• Members
• 79 posts
• Gender:Male

• Calculators:
fx-9860gii, fx-9750gii, TI-92, TI-89, TI-83 Plus

Posted 06 September 2017 - 05:42 PM

Hello all, this will be one of my first posts on this site so tell me if I'm doing anything wrong. On to the topic, when I enter the equation: 6/2(1+2)    It will then make it into: 6/(2(1+2))    I looked this up and it appears to be using an old rule (so I am told). Is there any way to change this? Thanks for your reply!

### #2 (*)

(*)

• Members
• 51 posts
• Gender:Not Telling

Posted 06 September 2017 - 06:02 PM

Nope, no way to change it. But I also don't see why you'd need it, you can usually adjust everything by just using "(" and ")"

### #3 GodOfCows

GodOfCows

• Members
• 79 posts
• Gender:Male

• Calculators:
fx-9860gii, fx-9750gii, TI-92, TI-89, TI-83 Plus

Posted 06 September 2017 - 06:06 PM

Thanks @Emex

### #4 pan.gejt

pan.gejt

Casio Freak

• Members
• 261 posts
• Gender:Male
• Location:CZ

• Calculators:
.

Posted 07 September 2017 - 09:44 AM

The omitted multiplication sign has higher priority than multiplication, division and other 2 operations.

You need to type the expression exactly (with multiplication sign or parenthesis - the calc doesn't know your thoughts), because 6/2(1+2) is undefined (this expression has 2 different meanings). Fortunately, Casio add the parenthessis automatically so the expression is exactly defined for calculation.

• (*) likes this

### #5 Rhodie

Rhodie

Casio Fan

• Members
• 35 posts

• Calculators:
fx9750gii upgraded to fx9860G&amp;amp;lt;br /&amp;amp;gt;EX995 Classwiz &amp;amp;lt;br /&amp;amp;gt;

Posted 21 June 2019 - 12:11 AM

Parentheses
Exponentiation
Multiplication
Division
Subtraction

Order of operations according to PEMDAS/BIMDAS/BOMDAS
for equation 6/2[1+2]
Brackets /parentheses appears first hence:
(1+2)=3 §A
PEMDAS state multiplication next operation
2A=6 §B
PEMDAS state Division next operation
6÷§B=1

Casio FX 9860G shows:
6÷(2(1+2))
=1
• Rhodie likes this

### #6 piu58

piu58

Casio Freak

• Members
• 145 posts
• Gender:Male

• Calculators:
Casio Graph 90+E, Casio fx-CG20

Posted 21 June 2019 - 04:47 AM

The ppc acts like mathematical formulae work: The (nomrally omitted) multiply sign has the highest priority. I like this.

It works only if you have one letter variables.

### Also tagged with one or more of these keywords: fx-9860gii

#### 0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users