Casio fx-3650P

• Arithmetic calculations[6]
• Fraction operations[7]
  • Fraction calculations[7]
  • Decimal↔fraction conversions[7]
  • Mixed fraction↔improper fraction conversions[8]
• Percentage calculations[8]
• Degrees, minutes, seconds calculations[9]
• Rounding (must be used with Fix decimal display mode)[9]
• Trigonometric functions[10]
• Hyperbolic function[11]
• Logarithm[11]
• Natural logarithm[11]
• Antilogarithm[11]
• Differential calculus[12]
• Integral calculus[12]

In this mode, if the result has both real and imaginary parts, an "R↔I" symbol will appear at the top right corner.[13]

• Absolute value and argument calculations[14]
• Rectangular↔polar form display[14]
• Conjugate calculations[15]

This mode is for statistical calculation. For some input data, the sum of squares of values (Σx²), sum of values (Σx), number of data (n), sample standard deviation (xσn-1) and population standard deviation (xσn) can be calculated.[16]

This mode is for statistical calculation and can be divided further into:[17]

• Linear regression: y=A+Bx[18]
• Logarithmic regression: y=A+B*ln x[18]
• Exponential regression: ln y=ln A+Bx[18]
• Power regression: y=A+x^B[18]
• Inverse regression: y=A+B/x[19]
• Quadratic regression: y=A+Bx+Cx²[19]

For some input ordered pairs, one of the below can be calculated.[20] (The availability differs from modes.[20])

Σx², Σx, n, Σy², Σy, Σxy, ${\displaystyle {\bar {x}}}$, xσn, xσn-1, ${\displaystyle {\bar {y}}}$, yσn, yσn-1, Regression coefficient A, Regression coefficient B, Correlation coefficient r, ${\displaystyle {\hat {x}}}$, ${\displaystyle {\hat {y}}}$, Σx³, Σx²y, Σx⁴, Regression coefficient C, ${\displaystyle {\hat {x}}}$₁and ${\displaystyle {\hat {x}}}$₂

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

Program commands:[21]

•  ? - 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).
• : - Multi-statement separator, separate program statements
• ◢ - Output command, output the value
• ${\displaystyle \Rightarrow }$ - Conditional jump, jump when conditions are met
• = - Relational operator
• ≠ - Relational operator
• > - Relational operator
• ${\displaystyle \geqq }$ - Relational operator
• Goto - Unconditional jump, jump to label, otherwise Lbl
• Lbl - Label, jump destination

Conditional jumps[22] should be used in the syntax:
condition ${\displaystyle \Rightarrow }$ statement 1 : statement 2
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${\displaystyle \Rightarrow }$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[21] 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.