1. Commands:
f->c c->f- convert fahrenheit & celcius temperatures
lb>kg kg>lb- convert pounds & kilograms
ft>m m>ft- convert feet & meters
in>cm cm>in- convert inches & centimeters
exp - e^x
ln - natural logarithm
sqrt -square root
x2 - square of x
/- division
*- multiplication
- - subtraction
+ addition
.fraction mark
+--it changes the sign of the number
1/x-inverse of a number
cos acos cosh- cosine, arc cosine, hyperbolic cosine of a number (radians)
sin asin sinh- sine, arc sine, hyperbolic sine of a number (radians)
tan atan tanh- tangent, arc tangent, hyperbolic tangent of a number (radians)
( )- parenthesis. Ex:2+(4-7)
pi- 3.14159265...
x3- X at the third power
cbrt- cubic root
log -decimal logarithm of a number
10x- antilogarithm of a number
D->R R->D- radian & degree conversion
X^Y - X to the Y power
P- perimeter of a circle, given radius
A- area of a circle, given radius
V - volume of a sphere, given radius
c/ce- clear/clean error
<-- (back space) when pressed delete last
digit
Enter- press to solve
2. Problems:
2-Functions asin and acos work for limited numbers
i.e: -1 < X < +1 for asin.
3-Functions sin, cos and tan work in radians only.
4-Cubic Root (cbrt) returns negative and positive results.
5-Many numbers can appear with garbage in the last
digits
Example:
sin(pi)= 0.00000000000000012246063538223773
instead of 0 (zero).
1.4*1.4=1.9599999999999997 instead of 1.96.
3-Copyright: