How do I input operation symbols?

Input rules for operations. Operations priority sequence.

The app supports the standard order of operations: parenthetical expressions, exponents (powers), multiplication and division, addition and subtraction. When the priority of two expressions is the same, the calculation is performed from left to right.

Addition
For addition, use addition.

Subtraction
For subtraction, use subtraction.
Note: This key can also be used to input the minus sign before a negative value.

Multiplication
For multiplication, use multiplication.
In some cases a multiplication symbol can be omitted.

5*x can also be entered as 5x
3*(x - 5) can be entered as 3(x - 5)
x*(5 - x) can be entered as x(5 - x)
(x + 3)*(x - 5) can be entered as (x + 3)(x - 5)
2*x(4 - 8*x)*(6*x - 10)*5 can be entered as 2x(4 - 8x)(6x - 10)5

Division
For division, use division.

The calculator supports division by numbers. The calculator does not support division by a variable.

Note: fraction bar symbol can be used for fractions input only. Do not use it for division.

Exponents
Exponents are typed using the power symbol power.

Note: Exponents cannot be decimals or variables.

Exponents of variables or expressions with variables must be positive integers only:
x2 would be typed as x^2, (-x)4 would be typed as (-x)^4.
Expressions with variables: (5x)^2, (2x+4)^3, ((x-8)/3)^2.

Exponents of numbers and number expressions could be positive numbers, negative numbers or zero:
22 would be typed as 2^2
(-5)8 would be typed as (-5)^8
(
1/2
)
-3 would be typed as 1/2^-3 or 1/2^(-3)
(2.5 + 3.1)3 would be typed as (2.5 + 3.1)^3.

Parentheses
The calculator supports parentheses (), including nested parentheses.









Wednesday, March 20, 2019

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