View source for Casio fx-3650P

{{short description|Programmable scientific calculator produced by Casio}}
{{Infobox Calculator
| name = Casio fx-3650P
| image = Casio fx-3650P bothside.JPG
| width = 200px
| caption =
| type = [[Scientific calculator]]
| entry        = [[Calculator input methods#Mathematical display|D.A.L.]]
| manufacturer = [[Casio]]
| prog_lang    = [[Keystroke programmable|Keystroke]]
| introduced = 2002
| discontinued =
| processor =
| memory =
| display_type = 2 line display

1st line-dot matrix

2nd line-LCD
| precision = ±1 at the 10th d.p.
| link =
| power = [[Solar cell]] and G13 Type (LR44) button battery two way power<ref>''fx-3650P Users' Guide'', Page E-52</ref>
}}

[[File:Casio fx-3650P II.JPG|thumb|Casio fx-3650P II]]

'''Casio fx-3650P''' is a programmable [[scientific calculator]] manufactured by [[Casio]] Computer Co., Ltd. It can store 12 digits for the mantissa and 2 digits for the exponent together with the expression each time when the "EXE" button is pressed. Also, the calculator can use the previous result to do calculations by pressing "Ans" (if calculator didn't turn off itself, by auto-power-off function, or by user).<ref name="UsersGuide">''[https://web.archive.org/web/20150526065244/http://ftp.casio.co.jp/pub/world_manual/edu/en/fx3650_3950P_E.pdf fx-3650P/fx-3950P User's Guide] {{webarchive |url=https://web.archive.org/web/20100922104334/ftp://ftp.casio.co.jp/pub/world_manual/edu/en/fx3650_3950P_E.pdf |date=September 22, 2010 }}'', Casio Computer Co., Lda. Japan.</ref><ref>''fx-3650P Users' Guide'', Page E-16</ref>

== Modes ==

The calculator is available in 6 modes:<ref>''fx-3650P Users' Guide'', Page E-8</ref>

* [[Basic arithmetic]] calculations
* [[Complex number]] calculations
* [[Standard deviation]] calculations
* [[Regression analysis|Regression]] calculations
* [[Radix|Base]]-''n'' calculations
* Programs

=== Basic arithmetic calculations ===

* Arithmetic calculations<ref>''fx-3650P Users' Guide'', Page E-11</ref>
* [[Fraction (mathematics)|Fraction]] operations<ref name="E12">''fx-3650P Users' Guide'', Page E-12</ref>
** [[Fraction (mathematics)|Fraction]] calculations<ref name="E12"/>
** [[Decimal]]↔[[Fraction (mathematics)|fraction]] conversions<ref name="E12"/>
** Mixed [[Fraction (mathematics)|fraction]]↔improper [[Fraction (mathematics)|fraction]] conversions<ref name=E13>''fx-3650P Users' Guide'', Page E-13</ref>
* [[Percentage]] calculations<ref name="E13"/>
* [[Degree (angle)|Degrees, minutes, seconds]] calculations<ref name="E14">''fx-3650P Users' Guide'', Page E-14</ref>
* [[Rounding]] (must be used with ''Fix'' decimal display mode)<ref name="E14"/>
* [[Trigonometric functions]]<ref>''fx-3650P Users' Guide'', Page E-21</ref>
* [[Hyperbolic function]]<ref name="E22">''fx-3650P Users' Guide'', Page E-22</ref>
* [[Logarithm]]<ref name="E22"/>
* [[Natural logarithm]]<ref name="E22"/>
* [[Antilogarithm]]<ref name="E22"/>
* [[Derivative|Differential calculus]]<ref name="E34">''fx-3650P Users' Guide'', Page E-34</ref>
* [[Integral calculus]]<ref name="E34"/>

=== Complex number calculations ===

In this mode, if the result has both real and imaginary parts, an "R↔I" symbol will appear at the top right corner.<ref>''fx-3650P Users' Guide'', Page E-17</ref>

* [[Absolute value#Complex numbers|Absolute value]] and [[Complex number#Polar form|argument]] calculations<ref name="E18">''fx-3650P Users' Guide'', Page E-18</ref>
* Rectangular↔[[Complex number#Polar form|polar form]] display<ref name="E18"/>
* [[Complex conjugate|Conjugate]] calculations<ref>''fx-3650P Users' Guide'', Page E-19</ref>

=== Standard deviation calculations ===

This mode is for statistical calculation. For some input data, the sum of squares of values (Σx<sup>2</sup>), sum of values (Σx), number of data (n), [[Standard deviation|sample standard deviation]] (xσn-1) and [[Standard deviation|population standard deviation]] (xσn) can be calculated.<ref>''fx-3650P Users' Guide'', Page E-25</ref>

=== Regression calculations ===

This mode is for statistical calculation and can be divided further into:<ref>''fx-3650P Users' Guide'', Page E-28</ref>

* Linear regression: y=A+Bx<ref name="E32">''fx-3650P Users' Guide'', Page E-32</ref>
* Logarithmic regression: y=A+B*ln x<ref name="E32"/>
* Exponential regression: ln y=ln A+Bx<ref name="E32"/>
* Power regression: y=A+x<sup>B</sup><ref name="E32"/>
* Inverse regression: y=A+B/x<ref name="E33">''fx-3650P Users' Guide'', Page E-33</ref>
* Quadratic regression: y=A+Bx+Cx<sup>2</sup><ref name="E33"/>

For some input ordered pairs, one of the below can be calculated.<ref name="E28-29">''fx-3650P Users' Guide'', Page E-28 & E-29</ref> (The availability differs from modes.<ref name="E28-29"/>)

Σx<sup>2</sup>, Σx, n, Σy<sup>2</sup>, Σy, Σxy, <math>\bar{x}</math>, xσn, xσn-1, <math>\bar{y}</math>, yσn, yσn-1, Regression coefficient A, Regression coefficient B, Correlation coefficient r, <math>\hat{x}</math>, <math>\hat{y}</math>, Σx<sup>3</sup>, Σx<sup>2</sup>y, Σx<sup>4</sup>, Regression coefficient C, <math>\hat{x}</math><sub>1</sub>and <math>\hat{x}</math><sub>2</sub>

=== Program ===

The calculator can hold up to 4 programs with a total capacity of 360 bytes.

Program commands:<ref name="ReferenceA">''fx-3650P Users' Guide'', Page E-41</ref>

* ? - Operator input command, used when user's input is required. Usually used with →(''variable'')
* → - Assign to variable command, to assign the value before it to the variable after it. Always used as (''value'')→(''variable'').
* <nowiki>:</nowiki> - Multi-statement separator, separate program statements
* ◢ - Output command, output the value
* <math>\Rightarrow</math> - Conditional jump, jump when conditions are met
* = - Relational operator
* ≠ - Relational operator
* > - Relational operator
* <math>\geqq</math> - Relational operator
* Goto - Unconditional jump, jump to label, otherwise Lbl
* Lbl - Label, jump destination

==== Conditional jumps ====

Conditional jumps<ref>''fx-3650P Users' Guide'', Page E-42</ref> should be used in the syntax:<br />
''condition'' <math>\Rightarrow</math>'' statement 1 '':'' statement 2''<br />
When ''condition'' is true, statement 1 is executed, then statement 2 is executed. If ''condition'' is false, statement 1 is skipped and statement 2 is executed.

E.g.:
...A=0<math>\Rightarrow</math>A+1→B:C+5→D:...
If A=0, both A+1→B and C+5→D is executed. If A≠0, only C+5→D is executed.

==== Unconditional jumps ====

Unconditional jumps<ref name="ReferenceA"/> use Goto and Lbl to operate.

When Goto ''n'' (where n is an [[integer]] in 0-9) is executed, the program will jump to Lbl ''n''. Loops can be created with unconditional jumps.

== System check ==

The calculator will perform a system check when shift, 7 and ON are pressed together. The system check has 3 parts.

Part 1: Elements check - All display elements are turned on when the system check is initiated. Pressing [SHIFT] turns the elements off. Press [SHIFT] to proceed. The next 2 screens have similar functions.

Part 2: display check - The dot matrix screen will display "24&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PRG13" and the LCD screen will display "0000000000 <sup>00</sup>". Press shift to proceed. Then the display becomes "BBBBBBBBBB" and "1111111111 <sup>11</sup>". Then "CCCCCCCCCC" and "222222222 <sup>22</sup>" and so on up till "JJJJJJJJJJ""9999999999 <sup>99</sup>". Press shift to proceed to part 3.

Part 3: key check - Press shift, the LCD will display 1. Press alpha, up, down, left, right in order. The display will increase by 1 each time you press a button. Next, press MODE, prog, <math>\textstyle \int</math>dx, x<sup>−1</sup>, x<sup>3</sup>, and so on up till Ans. When EXE is pressed, the display becomes "24&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;OK""13" (The display differs from version, the above is for version 4 of the calculator which is the latest version). Press ON to end the system check.

== References ==
<references />

{{Casio-calc}}
{{Casio}}

{{DEFAULTSORT:Casio Fx-3650p}}
[[Category:Casio programmable calculators|fx-3650P]]
[[Category:Products introduced in 2002]]