Sharp MZ-800 - Page 91

DEF FN
Format
Explanation
Example
DEF FN <function name>(<variable>)= <numeric expression>
The DEF FN statement is used to define user function. Such functions consist of
combinations of functions which are intrinsic to BASIC. The <function name>
is an uppercase letter.
DEF FNA(X)=2*#X1t2+34#X+1..... Defines 2X? + 3X + 1 as FNA(X).
DEF FNE(V)=1/2*#M#V12......00.... Defines 1/2MV? as FNE(V).
(incorrect definitions)
10 DEF FNK(X) =SIN(X/3 + 4/4), FNL(X) = EXP(— Xt2/K)
aoaseeteneett Only one user function can be defined by a
single DEF FN statement.
10 DEF FND(X)=FNB(X)/C + X....... Any functions which have been defined with
DEF FN cannot be used in another DEF FN.
Find the kinetic energy of a mass of 5.5 kg when it is imparted with initial accelera-
tions of 3.5 m/s*, 3.5x2 m/s’, and 3.5x3 m/s.
10 DEF FNE(V)=1/2*M#*Vt2
20 M=5,5:V=3.5
30 PRINT FNE(V), FNE(V #2), FNE(V*3)
40 END
Note:
All user function definitions are cleared when the CLR or NEW statement is executed.
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