### CALCULUS TIPS:

**Derivatives:**

2x^2 take exponent, multiply it by what’s in front of x, then take 1 away from the

exponent to get 4x^1 = 4x

2x^(2/3) same as above except you have to use 3/3 in place of 1

e^(x) = e^(x)

e^(2x) = 2*e^(x) (the derivative of what’s inside the parenthesis, * in front)

sin(x) use trig d/dx, identities in my program

x*sin(x), 2xsin(x), anything in front with an x – use product rule

cos(x) use trig d/dx, identities in my program

x*cos(x) 2xcos(x), anything in front with an x – use product rule

tan(x) use trig d/dx, identities in my program

ln(x) use ln(x) in my menu

2/(x+1) anytime you see a division sign use the quotient rule

(3x-2x^2)(4x+5) use product rule in my menu

**Integrals:**

e^x,sin(x),cos(x),tan(x) = transcendental things, us integration by parts

ln(x),log(x) goto same items in my menu, integration by parts

If your given problem has a different variable in its function such as “t” , or “ø” in

the function, then for my programs – substitute “x” for that other variable when

entering it for the function in my programs, of course now, when writing the step

by step calculations down on you paper – use the variable they gave you initially

in place of the “x’s”

When entering formulas such as 2xy + 3xz when prompted. Enter the formula

with a times sign ‘ * ’ in between the variables such as: 2*x*y + 3*x*z, not just

2xy etc.

When entering a minus sign to make a number/function negative (example -5*t)

use (-) (below the ANS button) not the minus sign below VAR-LINK.

Remember to use proper parentheses. One can never use to many as far as I’m

concerned. Example: ½+x is different than 1/(2+x)

If a program asks for 3 variables x,y,z and you are given only two ( x, y), then

simply enter zero (0) for the z variable.

y ’ or f ’ (x)

(same)

Different professors and books use different characters so make sure you

substitute your class’s characters on your paper during tests or homework.

If you somehow get into my actual programming syntax and mess up something,

(very unlikely) just e-mail me and I’ll re-send that particular program for you to

replace it free, or somehow fix the problem.

If you need help in calculus or my programs don’t hesitate to contact me, I can

even call you to help you if you want.