Calculator HP35Plus Version 1.00.
---------------------------------                                                     
Author Hubert Baumgarten 101.265175@germanynet.de.

Thanks to Gerard Vermeulen and Rob Butera.

About
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This Calculator emulates a HP35 but with more funcions.

Remember : There are 4 Stack-Registers T, Z, Y and X.
You see always the X-Register.
      
To compute 3*(4+5) type : 3 enter 4 enter 5 + *

Using HP35Plus
--------------
There are 4 stack-registers: X, Y, Z and T. You see always the X-register.

Enter pushes x to Stack.

Next Input will overwrite X

Computing with 2 arguments pulls x and y and stores in X. t is copied to Z. So you 
have the possibility of multiple use. X is additional stored in Last X
 
Computing with 1 argument replaces x. Enter is not necessary.

Switch to rad or dec to give and get angles in radiant or decimal.
Switch to sci or eng to display the results in scientific or engineering 
(exponent is multiple of 3) format.

There is a tape-recorder which records your input.

Use the gold-key to toogle between 2 key-functions.

Key	Function
---------------------------------------------------------
Log	Logarithmic to base 10.
10X	10 powered to X.
Ln	Logarithmic to base e.
e^X	e powered to X.
X^Y    	X powered to Y.
Y^X     Y powered to X.
>P	X and Y to polar coordinates; X becomes the amount. Y 
	becomes the angle (full circle).
>R	X and Y as polar coordinats are converted to X and Y amount
/X	Square root of X.
X^2     Square of X.
V+	X and Y as Vector are added to Z and T as Vektor, given in X 
	and Y. T and Z are unchanged.
V-	X and Y as Vector are subtrected from Z and T as Vektor, 
	given in X and Y. T and Z are unchanged.
Sin	Sinus of X.
Asin	Arcus sinus of X.
Cos	Arcus cosinus of X.
Acos	Cosinus of X.
Tan	tangens of X.
Atan	Arcus Tangens of X.
1/X	Reciprocal of X.
n!	n! of X.
X<>Y	Exchange X with Y.
last X	Recalls your X before last computing.
RV	Roll down x->T, y->X, z->Y, t->Z.
R^	Roll up x->Y, y->Z, z->T, t->X.
STO n	Store X in register n. Type 0 to 9 as register. 
RCL n	Recall X from Register n. Type 0 to 9 as register.
ENTER	t lost, z->T, y->Z, x->Y. Next input will overwrite X.
TAPE	Change to the tape window.
CH S	Change sign of mantissa or exponent.
EEX	Switch to mntering mxponent.
Deci	Set number of fixed decimals. Type 0 to 9. 0 means no Limit.
CL X	Clear X.
CL S    Clear stack. (Only visible after CL X)
CLR     Clear all register. Reset tape recording.

Tab to the number-display to invert the screen.
When you leave all registers and settings will be saved.
The tape is not saved.
Tape recording goes up to 200 entries.

Have fun. 

Hubert Baumgarten

