1.2. Product Information
1.2.1. What's new in MATLAB 4.2?
Here's a summary of the major additions and changes:
· Ability to produce hpgl format files
· Ability to import graphs into Adobe Illustrator '88
· Ability to save a figure and load it back into MATLAB
· Better, faster graphics
· DDE capability for the PC
· Online documentation for UNIX systems
· International Character Support (limited)
· Many memory leak fixes
1.2.2. When will MATLAB 4.2 be released on the various platforms?
The PC, SunOS, Solaris 2.2 and 2.3 and HP700 versions were released in late April 1994. Other UNIX platforms and the VMS version will follow shortly. In late May, the Mac version came out. The version for Power PC for the Mac will be released in late 1994.
1.2.3. How does MATLAB perform on machine X?
One way to measure the speed of MATLAB is by looking at the LINPACK benchmarks:
PC performance range: LINPACK (KFLOPS) VAXstation 3100 (VMS/D_floating) 365
HP 9000/400 (68030) 500
80486-based PC (33M Hz) 1300
HP 9000/425 (68040 chip) 1400
Macintosh Quadra 700 1500
Sun SPARCstation 1 1500
DECstation 3100 1600
SGI Indigo 2400
Sun SPARCstation 2 3600
Sun SPARCstation 10 9500
Convex C1 3700
IBM RS/6000 7000
HP 9000/700 7400
Cray X-MP 71000
Cray X-MP on a 500-by-500 matrix 135000
1.2.4. What's new with SIMULINK?
SIMULINK has added the following features in version 1.3: * Vectorization of blocks
* Scalar expansion of inputs
* Automatic routing of block connections
* Wide vector lines
* Sample time coloration of model
* Enhanced S-functions
* Many bew blocks!
1.2.5. What's new in Signal Processing Toolbox version 3.0?
The toolbox now offers enhanced filter design tools for digital and analog filters. Capabilities include the design of optimal least-square filters, minimum order estimation for FIR filters designed with remez , support for cascade filter implementation (second order sections decomposition), and analog Bessel filters. The toolbox has new functions to compute parametric models of signals and linear systems. In addition, there are now graphical demonstrations to provide easy exploration of filter parameters.
1.2.6. What's new in Neural Network Toolbox version 2.0?
Some significant improvements include the addition of trainlm , the Levenberg-Marquardt training algorithm, radial basis functions for the efficient design of supervised feedforward networks, and the recurrent Elman network, which allows you to create networks that can both recognize and generate temporal patterns.
1.2.7. Can a C or FORTRAN subroutine be called directly from MATLAB?
Yes, using "MEX-files." MATLAB's MEX-file facility allows any C or FORTRAN subroutine to be called directly from MATLAB. The MEX-file facility dynamically links your C or FORTRAN subroutine to the MATLAB program at run time.
1.2.8. Can I call MATLAB routines from my C or FORTRAN programs?
Yes, there are two ways. The first is using "MEX-files." MATLAB's MEX-file facility allows any C or FORTRAN subroutine to be called directly from MATLAB. The MEX facility dynamically links your C or FORTRAN subroutine to the MATLAB program at runtime. From inside your C or FORTRAN subroutine, you can then call any MATLAB function. To call a MATLAB function from your program, you start MATLAB, then call your program. Your program is then in control and can access any MATLAB function.
The second way to call MATLAB routines from your program is to use MATLAB as a computational engine. A set of subroutines is provided that allows you to start MATLAB, send data and commands to it, get data back, and terminate MATLAB. This way you can call any MATLAB routine from your FORTRAN or C function. 1.2.9. Is there going to be a 4.0 version of the Student Edition?
A Student Edition of MATLAB 4.0 is currently in development. This new version will be released in the early Fall of 1994.
1.2.10. Is there a MATLAB compiler?
A MATLAB compiler is currently in development. The release date is to be determined.
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