Calculator Techniques

CALCULATOR TECHNIQUES

CALCULATOR 101

Mode 1: COMP (Computation)

This is the IDLE mode of your calculator once you turn it ON.

This MODE is commonly used for GENERAL CALCULATIONS.

This is the MODE used in computing problems involving COMPLEX NUMBERS.

Mode 2 : CMPLX (Complex)

To CONFIGURE the SETTINGS on MODE 2: COMPLEX

PRESS: [ SHIFT ] – [ 2] OPTIONS (after pressing): [ 1 ] – ARG (ARGUMENT) [ 2] – CONJG (CONJUGATE) [3]–r‹θ [ 4 ] – a + bi

This is the MODE used in computing problems involving STATISTICS and REGRESSION. VARIATION [ 1 ] , LINEAR [ 2 ], QUADRATIC [ 3 ], LOGARITHMIC [ 4 ], EXPONENTIAL [ 5 ], To CONFIGURE the SETTINGS on MODE 3: STAT

Mode 3 : STAT (Statistics)

PRESS: [ SHIFT ] – [ 1] OPTIONS (after pressing): [ 1 ] – TYPE [ 2] – DATA [ 3 ] – SUM [ 4 ] – VAR (Variation) [ 5 ] – DISTR (Distribution) [ 6 ] - MinMax

Mode 5 : EQN (Equations)

This is the MODE used in computing problems involving EQUATIONS and POLYNOMIALS. OPTIONS (after pressing [ MODE ] – [ 5 ] ) : [ 1 ] – TWO – UNKNOWNS [ 2] – THREE UNKNOWNS [ 3 ] – QUADRATIC [ 4 ] – CUBIC

This is the MODE used in computing problems involving MATRIX ANALYSIS. Mat A [ 1 ], Mat B [ 2 ] & Mat C [ 3 ]

To CONFIGURE the SETTINGS on MODE 6: MATRIX PRESS:

Mode 6: MATRIX

[ SHIFT ] – [ 4] OPTIONS (after pressing): [ 1 ] – DIM (Dimension) [ 2] – DATA [ 3 ] – MATRIX A [ 4 ] - MATRIX B [ 5 ] – MATRIX C [ 6 ] – MatAns (Matrix Answer) [ 7 ] – Det (Determinant) [ 8 ] – Trn (Transpose)

Mode 7: TABLE

This is the MODE used in GENERATING A NUMBER TABLE based on ONE OR TWO FUNCTIONS.

This is the MODE used in computing problems involving VECTOR ANALYSIS. Vct A [ 1 ], Vct B [ 2 ] & Vct C [ 3 ] To CONFIGURE the SETTINGS on MODE 8: VECTOR

Mode 8: VECTOR

PRESS: [ SHIFT ] – [ 5] OPTIONS (after pressing): [ 1 ] – DIM (Dimension) [ 2] – DATA [ 3 ] – VECTOR A [ 4 ] – VECTOR B [ 5 ] – VECTOR C [ 6 ] – VctAns (Vector Answer) [ 7 ] – DOT

To CONFIGURE the SETUP of your CALCULATOR ENTER:

Configuring Your Calculator’s SETUP

[ SHIFT ] – [ MODE ] 1st OPTIONS ( after pressing) [ 1 ] – MthIO [ 3 ] – Deg [ 5 ] – Gra [ 7 ] – Sci

[ 2] - LineIO [ 4 ] – Rad [ 6 ] – Fix [ 8 ] – Norm

2nd OPTIONS (scroll down) [ 1 ] - ab/c [ 3 ] – CMPLX [ 5 ] – Disp

[ 2 ] – d/c [ 4 ] - STAT [ 6 ] - Contrast

SEMICOLON “:”

USING THE SEMICOLON “:” FUNCTION OF YOUR CALCULATOR Past CE Board Exam Problem A block of copper having a mass of 50kg is drawn out to make 500m of wire of uniform cross-section. Given that the density of copper is 819 g/cm2. 1. What is the volume of steel in cubic centimeters? 2. What is the cross-sectional area of the wire in square millimeters? 3. What is the of the wire in millimeters?

Solution: ρ = M/V ,

V = AL

Π 𝟒

A = (D2)

Input: (50000/8.91) : Ans/(500 x 100) : Press: [ = ] Press: [ = ] Press: [ = ]

𝟒𝒙𝑨𝒏𝒔 Π

Display: 5611.67 cm3 Display: 0.1122 cm2 or 11.22 mm2 Display: 0.378 cm or 3.78 mm

ENGINEERING MECHANICS

RIGHT ANGLE TECHNIQUE The “Rec” and “Pol” Functions PRESS: [ SHIFT ] – [ + ]

For “POL” Function

PRESS

[ SHIFT ] – [ - ]

For “REC” Function

The “Rec” function converts POLAR COORDINATES (r