15C Calculator RPN Scientific

The New 15C is simulator of 15c Scientific Calculator with below functions.
◇Decimal style (1,234,567.89 1.234.567,89)
◇Quick User Guide
◇Contact Support

Features:
* RPN logic with 4 stack levels plus a last X (LSTx) register.
* 67 addressable registers, used for storage registers or program
steps.
* 19 storage registers in default configuration with 46 registers for programs (appx. 332 program steps).
* Programmable with up to 448 program steps. In this configuration only 3 storage registers are available: R0, R1 and RI
* 10 Flags and 12 conditional tests, such as x = 0, x ≠ 0 and x > y.
Indexed looping via storage gegister I.
* Full storage arithmetic: STO +, −, × and ÷.
* 5 softkeys, labeled A through E.
* Multiple number format: FIXed, SCIentific and ENGineering.
* Trigonometric functions SIN, COS and TAN.
* Hyperbolic trigonometric functions SINH, COSH TANH.
* Three trigonometric modes: DEGrees, RADians and GRADs.
* Reverse trigonometric functions for standard and hyperbolic functions.
* Mean and standard deviation of 2 variables.
* Summation of n, x, x2, y, y2 and xy for statistic calculations of 2 variables.
* Decimal hours and hrs.min.sec. conversions.
* Polar and rectangular conversions.
* Solve and root finder.
* Numeric integration.
* Linear regression.
* Complex numbers.