MATLAB AS CALCULATOR BASIC TUTORIALS

Using MATLAB as a calculator is quite easy. The symbols are the same with most modern scientific calculators:

+ Addition

- Subtraction

* Multiplication

/ Division

^ To the power of

cos(x) The cosine of the value x

sin(x) The sine of the value x

tan(x) The tangent of value x

acos(x) The inverse cosine of the value x

asin(x) The inverse sine of the value x

atan(x) The inverse tangent of value x

cosh(x) The hyperbolic cosine of the value x

sinh(x) The hyperbolic sine of the value x

tanh(x) The hyperbolic tangent of value x

acosh(x) The inverse hyperbolic cosine of the value x

asinh(x) The inverse hyperbolic sine of the value x

atanh(x) The inverse hyperbolic tangent of value x

log2(x) The log to base 2 of x (where 2 can be any value)

log(x) By default the logarithm takes as base “e” (it’s basically the ln )

exp(x) (The exponential in power x)

If you want your result in many decimal places you can write

>>Format long

Before your equation, or if you want the opposite you can write

>>Format short

Matlab also has stored in memory some constants like the greek π which can be written as pi in matlab.

e.g.

>>sin(pi/2)

ans=     1