Sharp EL-9900 operation manual Common Math Function Keys for both keyboards

Chapter 2: Operating the Graphing Calculator

cEnters an arc cosine function at the cursor

tEnters a tangent function at the cursor

tEnters an arctangent function at the cursor

lEnters a logarithm function at the cursor

0Enters “10 to the xth power”, then sets the cursor at the “x”

IEnters a natural logarithm function at the cursor

@Enters “e-constant to the power of x”, then sets the cursor at the “x”

XEnters a variable “x”, “θ”, “T”, or “n”. The variable is automatically determined according to the calculator’s coordinate setup: “x” for rectangular, “θ” for polar, “T” for parametric, “n” for sequential.

Common Math Function

keys for both keyboards:

yEnters “ 2 ” at the cursor, to raise a number to the second power

xEnters “ -1” at the cursor, to raise a number to the negative first power

dEnters a mixed number.

bEnters a fraction.

aEnters an exponent.

_ By itself enters a “root” figure; the cursor will be set at “a”, the depth.

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