# User manual HP 300S X 30

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**Manual abstract: user guide HP 300S X 30**

Detailed instructions for use are in the User's Guide.

[. . . ] The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. First Edition: September 2012 Part number: 697635-001
Table of contents
About this Manual. [. . . ] 31
• •
“In(“ is a natural logarithm function with base e . You can also use the key when inputting an expression with the form of “logmn” while using Math format. Example: log2 16 = 4
(, )
Note that when you must input the base (base m) when using the key for input. 290024053
() ( )
1 ------------ = 12 Example 4: 1 – 1 -- -- 3 4
33
Rectangular-Polar Coordinate Conversion
Rectangular Polar Coordinates Coordinates (Rec) (Pol) Coordinate conversion can be performed in the COMP and STAT calculation modes. Converting to Polar Coordinates (Pol)
Pol(X, Y) • • • X: Specifies the rectangular coordinate X value Y: Specifies the rectangular coordinate Y value
Calculation result θ is displayed using the range of -180° < θ ≤ 180° Calculation result θ is displayed using the calculator’s default angle unit. calculation result r is assigned to variable X , while y is assigned to Y. Converting to Rectangular Coordinates (Rec)
Rec(r, θ ) • • • r : Specifies r value of polar coordinate θ : Specifies θ value of polar coordinate Input value θ is treated as an angle value, in accordance with the calculator’s default angle unit setting. calculation result x is assigned to variable X , while θ is assigned to Y. If you perform coordinate conversion inside of an expression instead of a stand-alone operation, the calculation is performed using the only first value (either the r-value or the X-value) produced by the conversion. example: Pol ( 2 , 2 ) + 5 = 2 + 5 = 7
(X , Y) = ( 2 + 2 ) → r , θ
34
(Pol) ( , ) (Pol) ( , )
(r , θ ) = (2 , 30) → (X , Y) (Rec) ( , )
Greatest Common Divisor and Least Common Multiple
• • • • • These functions exist in all modes. Greatest Common Divisor (GCD): To calculate the greatest common divisor of two positive integers. Least Common Multiple (LCM): To calculate the least common multiple among two positive integers. π
(LCM) (, ) (GCD) (, )
The Integer Function and the Greatest Integer Function
• • Int: The integer function extracts the integer part of the value by removing the digits to the right of the decimal point. IntG: The greatest integer function rounds down the value to the nearest integer. ρ (Int)
(Int)
(IntG)
(IntG)
Division with Quotient and Remainder
• • • You can use the function to get the quotient and the remainder in a division calculation. R is part of a series of multiple statements, only the quotient will be transferred to the next operation. Example: (2) (10+2)
•
•
The operation buttons are disabled during display of the result of an operation with calculation and display of remainder. If one of the following conditions is present when performing an operation with calculation will be treated as a normal division without calculation or display of remainder. When the quotient is not a positive value or the remainder is not an entire positive or a positive fraction. "Non simplifiable" appears when the value you specify is invalid as a divisor for simplification. 678 37
Using CALC
• You can store a single mathematical expression, with up to 99 steps. The command lets you temporarily store a mathematical expression that you need to perform several times. [. . . ] Before assuming malfunction of the calculator
Perform the following steps whenever an error occurs during a calculation or when calculation are not what you expected. 85
Note that you should make separate copies of important data before performing these steps. (1) Check that calculation expression to make sure that it does not contain any errors. (2) Make sure that you are using the correct mode for the type of calculation you are trying to perform. [. . . ]

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