Southampton BASIC System: Difference between revisions

Revision as of 14:44, 18 May 2009

Revision as of 14:58, 18 May 2009

Line 84:

|-

| <code>SIN</code>

| <math>\sin x</math>

|-

| <code>COS</code>

| <math>\cos x</math>

|-

| <code>ATN</code>

| <math>\arctan x</math>

|-

| <code>SQR</code>

Line 96:

|-

| <code>LOG</code>

| (<math>\log x</math>)

|-

| <code>EXP</code>

Line 108:

|}

Support for strings was more limited, with only one function, <code>LEN</code>, which returned the length of the string parameter. Sub-strings were supported with square brackets, so <code>A£[2,3]</code> referred to the sub-string of the string <code>A£</code> from the 2nd character to the 3rd character inclusive., so
LET A£ = "FOO"
PRINT A£[2,3]
would print <code>OO</code>

This syntax was also supported on the left-hand side of an assignment, so

LET A£ = "FOO"

LET A£[2,2] = "BAR"