Hidden functions
To obtain further functions press and hold the option key. In
general, the function obtained is the inverse of the normal one
eg sin becomes arcsine, log natural (ln) becomes ex, square root
becomes x2.
The M+ key becomes the M- key, subtracting the displayed value
from the memory, and MR becomes CM, clearing the memory.
The C key becomes CE, which will clear the last entry, but not
totally clear the calculator.
The two keys that have new functions are the % which becomes
¹(pi), and +/- which becomes 1
Úx.
The last two keys are the yth root of xand (with option key
down) xy(xto the power y). To use these keys enter the xvalue
first, then press the key. You will be prompted to enter the yroot
or power, and when youÕve done so, press equals to get the
result. Unlike many calculators, iMalc lets you correctly
determine odd number integer roots of negative numbers.
The Display
The display will show up to 12 digits (including a minus if
present).
Also in the display, on the left hand side are two indicators. The
one on the bottom left is the degree/radian/grad indicator and
shows which mode the calculator is in, displaying a D, R or G
respectively. This is always lit.
Initially unlit is the memory light, M, above the trig mode
indicator. If there is a number stored in memory other than zero
then this indicator will be lit.
To change the trig mode, just click on or near the indicator light.
It will cycle through D,R and G.
You can copy, cut and paste to and from the display window using
either the Edit menu, or use the standard Macintosh keyboard
shortcuts of 1-C, 1-Xand 1-Vrespectively. Clear in the edit menu
will act like the C button and completely clear the calculator. You
can also drag and drop numerical values on to the display.
iMalc Manual
Quick Start
Quick Start
4