Use the exponential function exp(y) to compute e^y. For example:  x = 0.2; Result = (x^2)*exp(4) Result = 2.1839

You may want the exponential function (link), the base of the natural logarithms.

3e4 = 3*10^4 = 30000

It is scientific notation, where e is shorthand for *10^.

You can change the output type in the console using the format command. For example . . .

>> x = 1.123456e5

x =

   1.1235e+05

>> format long
>> x

x =

     1.123456000000000e+05

>> format longG
>> x

x =

                  112345.6

>> format hex
>> x

x =

   40fb6d999999999a

Read the e-notation part.

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format g format long g

Hi, there is no type in format that generally tells MATLAB to use such a format. Nevertheless you can always use sprintf to make a string in the format you like, in this case it would be sprintf('%f', diff) ans = 0.000400 Titus

It's 9.4817 times 10 to the 3rd power, 9.4817 * 10^03 = 9481.7.

The log function does exactly what you want. log(14 - y) If you want a base 10 log, you use log10. There is also a log2 function, which gives a base 2 log. Other bases are achieved using the simple relation log(X)/log(b) produces a log to the base b. You could write a function for it as: logb = @(X,b) log(X)/log(b); logb(9,3) ans = 2 which is as expected. Finally, there is the reallog function, which also does the natural log, but it produces an error when the log would have been a complex number. log(-2) ans = 0.693147180559945 + 3.14159265358979i reallog(-2) Error using reallog Reallog produced complex result. But for the more normal case, reallog does the same thing as log. log(2) ans = 0.693147180559945 reallog(2) ans = 0.693147180559945

you need to take a look at MATLAB syntax. Here is the equation you are trying to write: y = exp(0.5x)sin(2x) Here is what you actually wrote: y = exp(1)0.5x sin(2)x What you wrote was exponential to power of 1, times x halved, times sin of radians 2, times x. In MATLAB, to use the exponential function correctly you’d want exp(0.5.*x), same with the sin function: sin(2.*x) The command window is a great tool. Why not compare what exp(1) produces with exp(x)? Test everything to understand the syntax. Also use the documentation for any function. For example, for documentation of exp, type “help exp” or “doc exp”.

x=0:0.1:10; y=exp(-x.^2); plot(x,y)